i returned from Mexico 12 days ago and had a some stomach cramps and loose stools but nothing too serious, although I continued to have a lot of bloating and burping. About 4 days ago I got really nauseous and slowly developed more symptoms nausea, fatigue, stomach cramps, minor vomiting and one diarrhea stool. I still feel lousy although I am taking an anti-nausea pill that is helping. What can I do to get better? Stool samples are pending, but they take days and I feel awful.