I am 6 weeks post op VSG. A sinus infection is causing post nasal drip which causes nausea. I'm on regular foods, but have been vomiting after each meal, no matter how slowly and well I chew, since I've had this sinus drainage. Figuring my new little tummy simply doesn't have room. TMI but too much phlegm is what's making me vomit.

Have been doing lots of Water and back to some Protein shakes to at least get some protein. Any other suggestions?

Try some mucinex to get rid of phlem. If you can control the drainage the naseau should stop.