Hi, I recently went to the doctor to get tested for different viruses , anemia , mono, and possible appendicitis . I ve been low key but I keep having the worst stomach pain, I can t eat food, and my lower right abdomen has horrible pain. But I stood up to fast and my body went numb, my vision went black and I had trouble catching my breathe . But should I contact my doctor or just see how I feel? I m home alone and 16.