A question for those who have come before me

I have tried a couple of times to post on this web site without much luck. Looks like I have finally got it. I am 33 years old from New York and am 9 weeks post op. Things have gone fairly well and I have lost 55 pounds. I tend to feel discomfort after I eat. This seems to happen at least once per day when I am eating a meal. It does not seem to happen when I have a protein shake. Is there any one else out there who is experiencing a similiar reaction. Also can you recommend a good protiein bar that is low in fat, carbs, and is sugar free?