Wierd Stomach Ilness, drank a margarita and had a vicoden? I wasn't thinking the other night and drank a margarita and had one vicoden. I started throwing up later that night until the morning and througout the day. I was soo dehydrated and sick. I had to run out of work and run to the hospital. My vomit was brown and my stomach continuously cramped up, that night I even came down with a headache and a 101 fever. My doctor sent me home with no medications but just verbal recommendations, rest, fluids, bland diet. It is the 3rd day and I haven't vomited today but my stomach still tends to tighten up into a fist/cramp up. I've been sticking to the recommendations but I'm worried that someting might be wrong with my stomach or other internal ograns. When I breath in my chest feels tight, my bowel movements are green and watery. Should I be worried about this?

Summarized question: What can cause headache, fever, vomiting for 2 days and watery discolored stools?