Worse still, CHS can be maddeningly difficult to diagnose. The World Health Organization has added the syndrome to its classification of diseases as clinicians try to catch up with the influx of cases, but many doctors remain unfamiliar with it — which means patients suffer longer while providers pursue other explanations. Sydni was even later diagnosed with Crohn’s disease, a separate digestive illness that can cause similar symptoms, which complicated her path to the real cause.
Quitting cannabis brought relief: after a nine-month break Sydni improved — then, tragically, she tried vaping again and plunged into another severe episode years later, repeating the terrifying cycle of weight loss and hospital care. Her conclusion was stark: the only sure way to test whether her symptoms were linked to cannabis was to stop — and when she did, the vomiting stopped too.