Just weeks before his unexpected death from a stroke during heart surgery, Bill Paxton revealed that he suffered heart problems when he was just a teen.
The beloved actor and filmmaker, who unexpectedly passed away at 61 on Saturday, eerily disclosed on Marc Maron's WTF podcast that he contracted rheumatic fever when he was only 13. His scary bout with the illness left him on bed rest.
"I woke up one night. I had been to a hockey game, and I woke up one night and I had a lot of pain in my left wrist," he explained.
The illness, which he said could damage heart valves, probably came from a "bad sore throat."
Bill Paxton through the years
Bill Paxton through the years
Bill Paxton (Photo by Kurt Krieger/Corbis via Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 924 -- Pictured: (l-r) Actor Bill Paxton during an interview with host Jay Leno on May 16, 1996 -- (Photo by: Margaret C. Norton/NBC/NBCU Photo Bank via Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 1820 -- Pictured: (l-r) Actor Bill Paxton, and journalist Maria Bartiromo during an interview with host Jay Leno on April 20, 2000 -- (Photo by: Paul Drinkwater/Network/NBCU Photo Bank via Getty Images)
Tom Rothman, Chairman of Fox Filmed Entertainment, Shaquille O'Neal, and Bill Paxton at the arrivals for the premiere of Planet of the Apes at the Ziegfield Theatre in New York City on July 24, 2001.(photo by Gabe Palacio/ImageDirect)
Bill Paxton at the world premiere of the 20th Century Fox film 'Planet of the Apes' at the Ziegfeld Theater in New York City. Photo: Evan Agostini/ImageDirect
BURBANK, CA - MARCH 31: Actor Bill Paxton appears on 'The Tonight Show with Jay Leno' at the NBC Studios on March 31, 2003 in Burbank, California. (Photo by Kevin Winter/Getty Images)
Canadian director James Cameron (R) and US actor and director Bill Paxton pose for photographers with 3D glasses upon arrival at the palais des festivals before the screening of Cameron's 'Ghosts of the abyss', a documentary on the wreck of Titanic, during the 56th Cannes film festival 17 May 2003. AFP PHOTO FRANCOIS GUILLOT / AFP / FRANCOIS GUILLOT (Photo credit should read FRANCOIS GUILLOT/AFP/Getty Images)
THE TONIGHT SHOW WITH JAY LENO -- Episode 2541 -- Pictured: (l-r) Actor Bill Paxton during an interview with host Jay Leno on August 8, 2003 -- (Photo by: Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)
Bill Paxton, Orlando Bloom and Frank E. Flowers, director (Photo by James Devaney/WireImage)
THE TONIGHT SHOW WITH JAY LENO -- Air Date 09/27/2005 -- Episode 3009 -- Pictured: (l-r) Actress Jennifer Garner, actor Bill Paxton during an interview with host Jay Leno on September 27, 2005 (Photo by Paul Drinkwater/NBC/NBCU Photo Bank via Getty Images)
Bill Paxton and Petra Nemcova during 2007 White House Correspondents Dinner - Bloomberg News Cocktail Party at Washington Hilton in Washington DC, United States. (Photo by Jamie McCarthy/WireImage)
LOS ANGELES, CA - JUNE 10: Actor Bill Paxton and Dodgers player Andre Ethier on the field at at Dodger Stadium on June 10, 2009 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
Actors Neal McDonough and Bill Paxton arrive at HBO's premiere of The Pacific held at Grauman's Chinese Theatre on February 24, 2010 in Hollywood, California. (Photo by Jeff Kravitz/FilmMagic)
BEVERLY HILLS, CA - FEBRUARY 22: (L-R) Actors Ginnifer Goodwin, Bill Paxton and Jeanne Tripplehorn speak onstage at the 13th Annual Costume Designers Guild Awards with presenting sponsor Lacoste held at The Beverly Hilton hotel on February 22, 2011 in Beverly Hills, California. (Photo by Alberto E. Rodriguez/Getty Images for CDG)
BEVERLY HILLS, CA - FEBRUARY 22: (L-R) Actors Samuel L. Jackson; Bill Paxton, and Billy Bob Thornton pose at the 13th Annual Costume Designers Guild Awards with presenting sponsor Lacoste held at The Beverly Hilton hotel on February 22, 2011 in Beverly Hills, California. (Photo by Stefanie Keenan/Getty Images)
LOS ANGELES, CA - JANUARY 05: Actors Bill Paxton (L) and Gina Carano attend Relativity Media's premiere of 'Haywire' after party co-hosted by Playboy held at DGA Theater on January 5, 2012 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images for Relativity Media)
LOS ANGELES, CA - SEPTEMBER 23: Actor Bill Paxton (R) and wife Louise Newbury arrive at the 64th Primetime Emmy Awards at Nokia Theatre L.A. Live on September 23, 2012 in Los Angeles, California. (Photo by Barry King/FilmMagic)
BEVERLY HILLS, CA - JUNE 12: Host Jenna Elfman (L) and actor Bill Paxton onstage at the 2012 Women In Film Crystal + Lucy Awards held at The Beverly Hilton Hotel on June 12, 2012 in Beverly Hills, California. (Photo by Michael Buckner/Getty Images For Women In Film Crystal + Lucy Awards)
SAN DIEGO, CA - JULY 20: In this handout photo provided by WBTV, 'Edge of Tomorrow' stars (L-R) Tom Cruise, Emily Blunt and Bill Paxton at the Warner Bros. booth during Comic-Con 2013 on July 20, 2013 in San Diego, California.(Photo by Chris Frawley/WBTV via Getty Images)
NEW YORK, NY - JULY 29: Bill Paxton attends the '2 Guns' New York Premiere at SVA Theater on July 29, 2013 in New York City. (Photo by Neilson Barnard/Getty Images)
ANAHEIM, CA - APRIL 19: Actor Bill Paxton attends WonderCon Anaheim 2014 - Day 2 held at Anaheim Convention Center on April 19, 2014 in Anaheim, California. (Photo by Albert L. Ortega/Getty Images)
MARVEL'S AGENTS OF S.H.I.E.L.D. - 'End of the Beginning - Agents Garrett (Bill Paxton) and Triplett are back to help Coulson's team track down S.H.I.E.L.D.'S nefarious enemy - the Clairvoyant. But will Deathlok destroy them all to protect his master's identity? 'Marvel's Agents of S.H.I.E.L.D.' airs TUESDAY, APRIL 1 (8:00-9:01 p.m., ET) on the ABC Television Network. (Photo by Kelsey McNeal/ABC via Getty Images)
BEVERLY HILLS, CA - MAY 31: Actors Bill Paxton (L) and Olivier Martinez attend the 5th Annual Critics' Choice Television Awards at The Beverly Hilton Hotel on May 31, 2015 in Beverly Hills, California. (Photo by Joe Scarnici/Getty Images for FIJI Water)
LOS ANGELES - SEPTEMBER 9: 'Wages of Sin' -- Pictured: Bill Paxton as Frank Rourke. Deputy Chief Lockhart opens an internal investigation into a past shooting which could cost Frank his badge and freedom, forcing Kyle to help Frank clear his name or risk losing the one man who could help him solve his father's murder, on TRAINING DAY, THURSDAY, MARCH 2 (10:00-11:00 PM, ET/PT), on the CBS Television Network. (Photo by Darren Michaels/CBS via Getty Images)
LOS ANGELES, CA - JANUARY 30: (EDITORS NOTE: image converted to black and white) Actor Bill Paxton attends the premiere of Momentum Pictures' 'Wheeler' at the Vista Theatre on January 30, 2017 in Los Angeles, California. (Photo by Michael Tullberg/Getty Images)
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"It kind of isolated me at an interesting age," the star revealed at the time. "Suddenly I was in this voyeuristic kind world, where I had TV but there wasn't much TV on in those days, and I read a lot and looked out the window at the golf course."
Host Marc Maron then asked the icon, known for his roles in "Twister" and "Titanic," if he's experienced issues with his heart since then.
"Well yeah," Bill replied. "Yeah, yeah, yeah."
The announcement of Paxton's unexpected passing hours before the 2017 Oscars left Hollywood in disbelief.
An emotional Jennifer Aniston honored the late Emmy-winning actor while introducing the award show's In Memoriam segment. Due to the unexpectedness of his death, he was not included in the video montage.
Celebrities react to Bill Paxton
Celebrities react to Bill Paxton
Condolences to the family of Bill Paxton. I just heard the news. 😢
Bill Paxton. A very talented man. As skilled with comedy as he was with drama. Carpe Diem. #rip https://t.co/2ULKQJUzI4
Devastated by the sudden loss of my close friend and one of the finest actors in the business, Bill Paxton. Renaissance man, raconteur and
In his memory, on this Oscar Sunday, watch "One False Move" or "A Simple Plan" to see this lovely leading man, at his finest.
Bill Paxton was hands down one of the greatest guys that I have ever met. I feel lucky to have called him my friend. Bill, I love you. RIP.
RIP Bill Paxton. So very good every time. In addition to his iconic roles, he was amazing in Near Dark, A Simple Plan & Edge of Tomorrow.
Very sad to hear about Bill Paxton. His talent, enthusiasm and energy were unique. Our thoughts are with his family https://t.co/W4IVuILHxv
Ugh RIP Bill Paxton. Hudson in "Aliens" and Simon in "True Lies" are awesome characters
Thoughts and prayers go out to the family of #BillPaxton who died at 61 due to surgical complications. Could not be… https://t.co/ZPuM3A4mbQ
The loss of #BillPaxton is beyond crushing. Once again, an icon, far too young, gone far too soon. 😢 Goodbye Private Hudson.
Only 61! Sad to read on #Oscars day that talented actor Bill Paxton has passed. My thoughts & prayers to his family https://t.co/8K26qmKP1Y
Sad news about Bill Paxton - too young. Always humanity, decency and touches of humor shining through his work. RIP.
I know im celebrating my baby's bday here but I just read about Bill Paxton. This is horrible news. What a great loss to cinema
Unbelievable. Bill Paxton is gone. Shocking. RIP
I am so saddened by Bill Paxton's passing. Had the pleasure of meeting him a few times in recent years and he was truly the loveliest guy.
Game over, man. Game over. Goodbye #BillPaxton. I'm honored to have written you a theme on @AgentsofSHIELD. #RIP… https://t.co/52FwFbq6ze
No!!! Bill Paxton passed away at 61. RIP a fine actor. 😞
Heartbroken to hear about #BillPaxton passing away! He was one of those actors that you don't… https://t.co/ftKyFNyIqp
Growing up walking through Blockbuster if Bill Paxton was on the cover I'd rent it. He easily helped shape my love of movies. RIP
I am stunned & saddened at the passing of Bill Paxton. I just worked with him recently. A warm and beautiful soul and a talented actor. RIP
Rest In Peace my sweet friend. https://t.co/1QC7pzDZPz
My heart goes out to Bill Paxton's loved ones. A fantastic, hard working, devoted actor, father and director.
A tragic & shocking loss.. such a kind & talented man, indeed 😔🙏💛 #BillPaxton #truelies #fam https://t.co/4SLzD1TI3w
Just clicked on Twitter and discovered Bill Paxton has died at 61. So sorry to have lost him. I thought he was... https://t.co/hxFFvNesgL
What sad sad news.Bill Paxton was a genuinely good guy and an actor of great depth .Love and prayers for peaceful hearts to his family.
Saddened by the shocking loss of Bill Paxton. The greatest guy & wonderful actor. His enthusiasm and passion was infectious. See his films!
So sorry to hear about Bill Paxton's death. A lovely man. My thoughts are with his family.
Goodbye Bill Paxton. Thank you for decades of entertainment & for giving us some of the most quotable characters that still endure. #RIPchet
Oh #BillPaxton you were one of my favs, in everything #RIP
Really sad about the passing of Bill Paxton....RIP
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"Every one was a cherished member of our Hollywood family ... as was beloved friend and actor who left us just yesterday, Bill Paxton," she said while getting visibly choked up.
Other celebrities, like Jamie Lee Curtis and Rob Lowe, shared their condolences on social media immediately after news broke.
The "Training Day" star is survived by his two children, James and Lydia, and his wife Louise Newbury.