Is Justin Bieber headed for a breakdown? A look into his recent erratic behavior

Is Justin Bieber on the Brink of a Meltdown?

Is Justin Bieber headed for a breakdown?

After a string of recent bizarre behavior, which includes walking barefoot in a park and feeding a squirrel, berating fans for asking for photos with him and acting weird on stage during his Purpose World Tour, sources close to the singer are expressing concern that he's on the brink of a breakdown.

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On Monday, Bieber got people talking when he walked around a park in Boston without his shoes on. We're used to seeing him without a shirt, but without socks?! That was certainly a new one.

But he wasn't done there: He continued to turn heads when he started feeding a squirrel and telling fans who were filming him, "don't do that."

Possibly in response to his supposedly terrifying experience with his fans that day, Bieber took to Instagram to make a big announcement: He's "done" taking pictures with his fans. That's right, the Biebs is appreciative if you buy his albums or scream your heart out at his Purpose World Tour, but if you ask for a picture with him, your request will be denied.

See photos of Justin Bieber through the years:

13 PHOTOS
The Evolution of Justin Bieber
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Is Justin Bieber headed for a breakdown? A look into his recent erratic behavior
Canadian pop megastar Justin Bieber (C) plays basketball with a young survivor of Super Typhoon Haiyan in Palo, Leyte province on December 10, 2013. Pop megastar Justin Bieber sang to and played basketball with young survivors of the Philippines' deadliest typhoon on December 10 after he flew into the disaster zone to boost an international relief effort. AFP PHOTO (Photo credit should read STR/AFP/Getty Images)
LOS ANGELES, CA - JULY 27: The winner of Champ of Charity singer Justin Bieber (L) and singer Cody Simpson onstage at the 2014 Young Hollywood Awards brought to you by Samsung Galaxy at The Wiltern on July 27, 2014 in Los Angeles, California. The Young Hollywood Awards will air on Monday, July 28 8/7c on The CW. (Photo by Frederick M. Brown/Getty Images for Variety)
The "Baby" singer headed straight to the salon for a new makeover ... this time going blonde! (Instagram)
LOS ANGELES, CA - AUGUST 23: Justin Bieber attends a VMA Pre-Party hosted by Chris Brown & Pia Mia featuring Bera on August 23, 2014 in Los Angeles, California. (Photo by Araya Diaz/Getty Images)
NEW YORK, NY - JAN 17: General view of a Justin Bieber for Calvin Klein Billboard located on Houston Street on January 17, 2015 in New York City. (Photo by Tomas/IMAGES/Getty Images)
LAS VEGAS, NV - MARCH 15: Singer Justin Bieber arrives at Omnia Nightclub at Caesars Palace to celebrate his birthday on the nightclub's opening weekend on March 15, 2015 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
CANNES, FRANCE - NOVEMBER 07: Singer Justin Bieber attends the 17th NRJ Music Awards ceremony at Palais des Festivals on November 7, 2015 in Cannes, France. (Photo by Marc Piasecki/WireImage)
LOS ANGELES, CA - JANUARY 18: Justin Bieber and Corey Gamble are seen in Beverly Hills, Ca on January 18, 2016 in Los Angeles, California. (Photo by Light Brigade/Bauer-Griffin/GC Images)
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"If you happen to see my out somewhere know that I'm not gonna take a picture," he wrote. "I'm done taking pictures."

"It's gotten to the point that people won't even say hi to me or recognize me as a human," he continued in his rant. "I feel like a zoo animal, and I wanna be able to keep my sanity."

After immediate backlash from his fans (and non-fans), Bieber posted a follow-up Instagram of a scathing comment from a fan calling him a "prick." In his response, Bieber said, "If you think setting boundaries is being a douche, I'm the biggest douche around, but I think it's smart and will be the only way I last."

"I wanna enjoy life and not be a slave to the world and their demands of what they think I need to do," he continued. "I'm going to keep making decisions I feel are fit for my growth and no human being will make me feel bad for it."

It seems that his latest string of social media posts point to a larger concern of Bieber's. According to a source close to the controversial singer, Bieber is "really struggling with the fact that he can't do things that normal people can do."

Not only does he reportedly want to live a normal life, but Bieber was also thrown for a loop when his ex-girlfriend, Selena Gomez, was photographed over the weekend getting cozy with her other former flame, Orlando Bloom.

When Bieber heard about the pictures, he was allegedly "not happy [because] those two have quite a history."

Another source counters that, though: Perhaps his recent erratic behavior has nothing to do with Gomez. Perhaps the pressure of being the most talked about celebrity in the world is getting to him.

"It has nothing to do with Selena," another source explained. "It's more about Justin carrying the weight of the world on his shoulders."

Whatever it is, it seems as though Bieber is certainly in an iffy place right now.

See photos from Justin Bieber's current Purpose World Tour:

35 PHOTOS
Justin Bieber Purpose World Tour
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Is Justin Bieber headed for a breakdown? A look into his recent erratic behavior
SEATTLE, WA - MARCH 09: Justin Bieber performs on stage during opening night of the 'Purpose World Tour' at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Mat Hayward/Getty Images)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Justin Bieber performs on stage during opening night of the 'Purpose World Tour' at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Mat Hayward/Getty Images)
SEATTLE, WA - MARCH 09: Justin Bieber performs on stage during opening night of the 'Purpose World Tour' at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Mat Hayward/Getty Images)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Justin Bieber performs on stage during opening night of the 'Purpose World Tour' at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Mat Hayward/Getty Images)
SEATTLE, WA - MARCH 09: Justin Bieber performs on stage during opening night of the 'Purpose World Tour' at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Mat Hayward/Getty Images)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - MARCH 20: Recording artist Justin Bieber performs at the 2016 Purpose World Tour at Staples Center on March 20, 2016 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: (EDITORS NOTE: This image has been converted to black and white.) Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
SEATTLE, WA - MARCH 09: Singer/songwriter Justin Bieber performs onstage at KeyArena on March 9, 2016 in Seattle, Washington. (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - MARCH 20: Recording artist Justin Bieber performs at the 2016 Purpose World Tour at Staples Center on March 20, 2016 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic)
LOS ANGELES, CA - MARCH 20: Recording artist Justin Bieber performs at the 2016 Purpose World Tour at Staples Center on March 20, 2016 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic)
LOS ANGELES, CA - MARCH 20: Recording artist Justin Bieber (L) and Chance The Rapper perform at the 2016 Purpose World Tour at Staples Center on March 20, 2016 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic)
LOS ANGELES, CA - MARCH 20: Recording artist Justin Bieber (L) and rapper Big Sean perform at the 2016 Purpose World Tour at Staples Center on March 20, 2016 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic)
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