Tummy Tuck Question

Hi, I had my tt over 3 years ago... Over the past few months I have put on some weight about 15lbs, its going to be 5 yrs from RNY. I wanted to know if anyone that has had a tt, has gained any weight.. My stomach area feels so funny anything tight kills me.  Anyone having these issues please let me know. I am getting back on track but its not a good feeling.   Thanks.. Debbie