I am a bit more than 5 years post-op and have suddenly developed persistent unexplained nausea with some vomiting that is unlike previous post-op experience. I have lost about 20 pounds in 6 or 7 weeks involuntarily although I am not in the weightloss phase any longer. I have also recently (6 months ago) had incisional hernia repair surgery over the site. A new large hernia is visible to the left now of the incision scar. My daily life is affected... although sometimes I am okay in the same day I frequently become sick enough to keep me home. Eating seems to make the nausea worse. It is not dumping syndrome with which I am already familiar with. CAN YOU HELP ME FIGURE OUT WHAT IS GOING ON?