My nutritionists has told me that is ok as long as I can get the proper amounts of fluid in at the very least! I almost got dehydrated because I was the same way, I just didn't want any food or water. I can tell you from experience, you DO NOT want to get dehydrated, worst feeling every! I'd rather have a bad flu than dehydration, yuck! Anyway, that's what she told me, fluids are the most important, protein is second. Hope this helps a bit....