If you have had the bypass I have done some quick research for you (obviously though, I am not a doctor, and if you did have the bypass I would suggest getting to the Hospital group yourself this saturday and demanding to see Mr El Hussani)
Nausea and vomiting are the most common complications occurring in the first few months after gastric bypass surgery. They may occur after eating too fast, drinking liquids while eating, not chewing enough, or eating more than the pouch can comfortably hold. It is necessary to learn to eat very slowly and chew foods thoroughly. Nausea and vomiting can also be triggered after trying new foods. If this happens, allow a few days to pass before trying a new food again. Notify a physician if frequent vomiting becomes a problem. *
*If you had surgery a few weeks ago and if you vomit every time you eat, you should suspect a possible stricture. If you vomit after drinking as well, a stricture is even more likely. If you think you might have a stricture, you need to contact your surgeon as soon as possible. If you are not able to keep down fluids, you may need IV fluids to rehydrate you.
Right after surgery, it is normal to have some swelling at the site of the stoma. There may also be some scar tissue developing at the site. Normally, this is not significant enough to cause any problems. However, sometimes the scar tissue causes the stoma to narrow significantly, making it difficult for food or even liquids to pass through into the small intestine. In some cases, the opening can close completely. This is known as a stricture.
Strictures after a gastric bypass are not that uncommon. They can be serious, however, because obviously you have to be able to get food and liquids in.