Mysterious illness linked to legalized marijuana

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A terrifying illness seems to be on the rise in states that have legalized marijuana.

Cannabinoid hyperemesis syndrome, or CHS, involves severe abdominal pain as well as vomiting. It has been linked to heavy, longterm use of marijuana, according to CBS.

A mysterious disease linked to the drug is now on the rise in states that have legalized marijuana, according to CBS.

Sufferers feel relief from their symptoms after taking a hot bath or shower -- and scientists do not know why.

When medical marijuana was more widely accessible in Colorado in 2009, a study showed that emergency room visits involving a CHS diagnosis nearly doubled in two hospitals.

Outside of the state, the diagnosis is often overlooked since patients don't like to admit to using an illegal substance.

CHS was only recognized by the medical world a decade ago, but a recent spike in CHS since the legalization of medical marijuana by other states has doctors on high alert, according to CBS.

Read more about drug laws:

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Marijuana legalization laws by state
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Marijuana legalization laws by state

Alabama: Medical use only, otherwise possession is a felony

(Photo: Dennis Macdonald via Getty Images)

Alaska: Marijuana legalized for medical and recreational use 

(Photo: Zoonar/N.Okhitin via Getty Images)

Arizona: Marijuana legalized for medical use

(Photo: Mikel Ortega via Getty Images)

Arkansas: Medical use only

(Photo: Getty Images)

California: Legal for medical and recreational use

(Photo: Dorling Kindersley via Getty Images)

Colorado: Legal for medical and recreational use  

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Connecticut: Decriminalized and legalized for medical use 

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Delaware: Decriminalized

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Florida: Medical use only

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Georgia: Medical use only

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Hawaii: Medical use only

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Idaho: Not legal

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Illinois: Decriminalized

(Photo: VisionsofAmerica/Joe Sohm)

Indiana: Not legal

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Iowa: Medical use only

(Photo: Getty Images)

Kansas: Not legal

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Kentucky: Not legal

(Photo: Dorling Kindersley via Getty Images)

Louisiana: Medical use only

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Maine: Legal for medical and recreational use

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Maryland: Decriminalized

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Massachusetts: Legal

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Michigan: Medical use only

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Minnesota: Decriminalized

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Mississippi: Decriminalized on first offense

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Missouri: Not legal

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Montana: Medical use only

(Photo: Dennis Macdonald via Getty Images)

Nebraska: Decriminalized on first offense only

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Nevada: Legal

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New Hampshire: Medical use only

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New Jersey: Medical use only

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New Mexico: Medical use only

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New York: Decriminalized unless in public view

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North Carolina: Decriminalized

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North Dakota: Medical use only

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Ohio: Decriminalized

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Oklahoma: Medical use only

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Oregon: Legal for medical and recreational use

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Pennsylvania: Medical use only

(Photo: Henryk Sadura via Getty Images)

Rhode Island: Decriminalized

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South Carolina: Not legal

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South Dakota: Not legal

(Photo: Dave and Les Jacobs via Getty Images)

Tennessee: Medical use only

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Texas: Medical use only, decriminalized in Houston and Dallas

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Utah: Not legal 

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Vermont: Decriminalized

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Virginia: Not legal

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Washington: Legal for medical and recreational use

(Photo: Shutterstock)

West Virginia: Not legal 

(Photo: Getty Images)

Wisconsin: Medical use only

(Photo: Getty Images)

Wyoming: Not legal 

(Photo: Space Images via Getty Images)

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