Hi Doctor. For the last 4-5 days my stomach has been churning a lot and I have felt nauseous. I haven't vomited once and I also have not had any diarrhea. My bowel movements seem pretty normal. I've taken some antacid tablets, but they haven't seemed to do much to make me feel better. I thought I had a stomach bug, but whenever I have, I generally get pretty ill with harsh stomach pains, vomiting, diarrhea, etc. Any idea what may be wrong?