I had my gallbladder out 1 month ago. Ever since I have had a loss of appetite. I have been experiencing episodes in which I get very hot, start sweating
and have been taking Prilosec 2 times a day for several years now. My typical daily diet is 1/2 bagel in the morning, a small salad with light dressing for lunch and a Lean Cuisine dinner at night. That is all I eat all day.
Try adding metmucil in everday, my surgeon suggested 2 capsules every morning. By sounds of your diet you are not getting enough fibre, or nutrition in your diet.