Hi, Welcome to Healthcaremagic.com. I had gone through your question I can understand your concern about your bowl upset. As per your history you seems to be suffering with dehydration and electrolyte imbalance. As you said you had multiple diarrhea there is much water loss and less absorbed food from intestines. You need to take good amount of food, water and electrolytes in the for of oral rehydration solution (ORS). The generalized body aches and fatigue is because of the same reason, also you are having diarrhea since a week you nay be having gastritis too. That can also lead to fatigue. Visit a Gastroenterologist and take a course of antibiotics for the main cause of diarrhea. Hope my answer will help you and visit us back if you have any further questions. Regards Dr Muzaffer Hussain Parray.