Hi! i threw. up once this morning and have been having green diarrhea all day but am no longer nauseas. i'm 25 years old.

Likely infection: Sounds like food poisoning. If the nausea is resolved, soon the diarrhea should taper off as well, Keep well-hydrated with water or coconut water, not gatorade or soda. Eat rice, toast, bananas. Simple stuff. If you aren't pretty much all better in a few days, see your doc on the outside chance you have a difficult bug. If you get worse (including fever), go see your doc sooner. Good luck.