Yesterday I was dizzy and sweating a lot and then I threw up, I felt better but still had some pain in my stomach right around/behind my belly button and I ve been having back aches with it. Yesterday I couldn t handle the pain. Today, I ve the same symptoms, but not until about 9 a.m. and not as bad. I thought maybe it was food poisoning, but now I still have pain, but no nausea.