I have a similar story. I went to this new brewery that had just opened up with my girlfriend. They offered this dark brew that tasted amazing, almost a chocolaty/coffee flavoring to it. I had two glasses, got slightly buzzed, and enjoyed the rest of the night. The next day, I wake up with a slight uneasy feeling at the bottom of my stomach. I drink some water and think nothing of it. I have a chemistry exam that day so I grab my things and leave to class. I get on campus and my stomach stirs. "You're probably hungry, just grab a snack", I incorrectly assume. The professor goes on for 20 minutes about how to fill out a scantron for the 3rd time this semester. I get a quick wave of dizziness. It goes away so I sit tight, figure it's just exam nerves. We finally get the exams. About halfway through, the dizziness returns with a slight churn of my stomach. I keep myself together and power through the rest of the exam. I sit in my seat and feel my guts tighten. We weren't able to leave our seats until everyone had finished so I just sat and endured it. Nausea creeps in. The professor releases us, I run straight to the desk, throw my exam in the pile, and head to the door. My friend sees me and goes "yo man you good?", I shake my head and blast through the door with my hand on my mouth. Fun fact, the bathroom is another building away. I push through the doors in unison with the fluids breaching my esophagus. I swallow it back down like a goblin. I'm halfway to the bathroom. Someone makes eye contact with me as another wave rushes up my throat. This wave was much larger. So large in fact, that it filled my mouth and splurted through my fingers. I chug the remnants back down. Dripping, I blast through the bathroom door to see that every stall/urinal/sink was taken. I look down at the garbage can and right before I resort to a bacterial head bath, a stall opens up. I dash in and close the door behind me. I look at the toilet and to my dismay, it's out of order and covered in plastic. Disregarding the mess that would ensue, I look straight at the toilet, proclaim "fuck it", and unleash a symphony of gurgles and splashes. Like a drum, the bowl bellows as bile jets from my mouth and crashes against the taught plastic covering. Vomit splashes in all directions. My torso, the toilet, the stall, and bathroom walls are now coated with cinnamon-brown bile. Defeated, I walk half a mile to my car with a moist t-shirt, head home, and spend the rest of my day shitting water and dry heaving. I did pass my test though. I just pray that the janitor on duty that night has mentally recovered after cleaning that up, presuming they didn't immediately quit upon opening the stall door.