Over the last year & 1/2 I have several episodes where I have had severe pain in the top part of my stomach with in 30mins of eating. I get light headed - sometimes vomit - break out in a cold sweat - get to the point I feel like I am going to pass out.... the "spell" last about a hour, but the rest of the day I feel drained and just awful! I had my gall bladder removed last year, because we thought that was the problem. My last episode was in Feb - we did sugar test then and discoved I had low blood sugar. I had a spell today - but my blood sugar was fine... WHAT Could this be?