This is way under recognized - well meaning doctors do extensive work ups to find out why young stoners are mysteriously vomiting - first, ASK THEM IF THEY’RE STONERS!
I knew a 20-something about 3 years ago who was hospitalized for uncontrolled vomiting and anxiety that accompanied it. It was treated by medically induced coma for 2 or 3 days, then once out of the coma, a couple more days of observation, and slow introduction of food. It worked. What I did not know then was that this person smoke weed. He was perplexed why this mysterious illness occurred after he turned 20.
About a year later, he went to CA to “make good money” as he had a “friend” who owned weed farm designed to grow “medicinal quality MJ”. He told me how much dinero he could make farming MJ for his friend. (When asked him why an MJ farmer would not just hire illegal aliens instead paying him a very high wage... never got a good answer). He was in CA for one week and had to be hospitalized for the uncontrolled vomiting and anxiety. I understand the ER Drs kept asking him if he was on drugs, which he kept denying. I don’t know what blood tests they did or anything else, but eventually they induced him into a coma to treat him. Once he was out of the CA hospital, he returned home. Eventually I learned that he had an alcohol and drug abuse problem, but we don’t cross paths anymore. This article makes me think I encountered a person with CHS.
The condition is well recognized and we ask pretty much anyone under 40 with chronic hyperemesis how much they smoke. We get the same answer every time. "I smoke to settle my stomach".