I am a 26 yr old latino male. I have been suffering explosive diarrhea for the past couple of weeks which has led to rapid weight loss (about 35-40 lbs in two weeks). Yesterday, after the diarrhea subsided for about a day, I began vomiting once every hour or so, and the diarrhea has resumed. Cultures were ran for the stool and they came back negative. At first, the vomiting had food in it, but after the first, all subsequent releases were a dark green liquid. All vomit produced since the first yields several ounces of this liquid (bile perhaps). What should I do?