For years now I have had random lower abdominal pains and throwing up. - pains on lower left side feels like a sharp ripping/ cramping. I have narrowed down a lot of the times when I do get sick - if I get hungry while doing something and don t eat I ll get really bad hot flashes then puke- if I don t eat I ll continue being sick. If I eat I ll be fine in about 20 minutes. Any help with what s wrong with me?