When Daniel arrived at the ER clutching his stomach, drenched in sweat, and unable to stop vomiting, he thought he was dying. He had no fever, no infection, no food poisoning — just relentless waves of nausea so violent he could barely breathe between episodes. Doctors rushed him into a treatment room, trying to stabilize him as he curled into himself in agony. It wasn’t until the nurses heard how long the episodes had lasted that one of them murmured a term he had never heard before: “This sounds like that cannabis reaction we’ve been seeing lately.” Daniel was stunned. He’d used marijuana for years without a single issue.

As the symptoms worsened, the hospital staff explained a condition that’s been sending thousands to emergency rooms worldwide: Cannabinoid Hyperemesis Syndrome, a rare reaction some long-term users experience. The nickname patients often give it — “scromiting” — comes from the uncontrollable mix of screaming and vomiting during the episodes. Daniel could hardly believe it. Marijuana had always calmed him, relaxed him, helped him sleep. Now his body was reacting like it had turned against him, punishing him with pain he didn’t know was possible. Even the doctors admitted they still don’t fully understand why it happens to some people and not others.

For nearly twelve hours, Daniel cycled through misery — vomiting, shaking, begging for it to stop. Nurses applied heat pads, offered medications, and monitored his breathing as the spasms continued. Each time he thought the worst had passed, another surge hit him harder than the last. “I wouldn’t wish this on my worst enemy,” he whispered afterward. What terrified him most was how quickly it all happened. One moment he felt a little nauseous, the next he was collapsed on the bathroom floor, unable to lift his head or call for help until his wife found him and drove him straight to the ER.

When the episode finally subsided, doctors warned him that the only reliable way to prevent another attack was to stop cannabis use entirely. The news rattled him — not because he felt dependent, but because he never imagined something so familiar could suddenly turn dangerous. Daniel now shares his story to warn others: not to scare them, but to remind them that even something perceived as harmless can have rare complications. “Listen to your body,” he says. “If something feels wrong, don’t wait. Get help.” His experience became a harsh reminder that health can change in an instant — and the safest choice is knowing when to pay attention.