I am just over 7 weeks post op and have started having similar problems. I have had problems drinking Water since the surgery which is awful because I loved water! I can drink thicker liquids....protein shakes, smoothies, coffee with creamer....and tolerate all well, but water has always been really bad! Then a few days ago I started getting that same terrible feeling with anything I swallow. It's not painful, I just feel nausea all the time. Saltines with Peanut Butter settle it for a bit, but it comes right back!
I too experience dizziness, racing pulse, sweating, and just a terrible feeling after eating or drinking anything with sugar or higher carb content such as fruit. I made the mistake of drinking a Protein shake one day that was not sugar free and thought I was going to pass out.
I have only been eating saltines and decaf coffee for about 3 or 4 days, so naturally my weight loss has stalled! Seeing my primary care dr. tomorrow for her advice.