When I started to actually feel hunger, gas, and pain, it was confusing as to what it actually was. Sometimes I felt like I might be hungry but it was actually gas. Sometimes I thought it was gas but was hunger.
Also, like other have said, it may be in your head. I was so scared of dumping I didn't even try anything that had any bit of sugar for almost 8 months.
After a year, I know my limits and know when I want something I know I shouldn't have, I have a little and go on. The nutritionist told us it would be normal to desire something from time to time and its OK as long as you don't do it all the time or go crazy.