I am 39, 202 lbs, 5 8 have a history of obesity, had the gastric bypass in June 2008. I have had no complications from my bypass, I have done well. However I have had the dumping associated with the bypass. The concern I have is NOT dumping it s different... but I all of a sudden will get weak, very hot start sweating all over I mean drenched, get faint, shakey and feel like I am going to pass out. Then when the episode is over I am very tired and freezing. This happens regularly and scares me everytime!