I am concerned that something serious may be wrong. I seem to be having a repetitive symptom. I eat, not an abnormal amount. An hour or so later it feels like I ate 3 elephants, my stomach feels overly full. My upper left stomach under my breast hurts, I get a medium to sharp pain in my head. I then vomit, alot, and continue to feel sick. My left wing in my back is sore. This has happened 2 times in 2 weeks now.