3 weeks Since I was banded

I am feeling very down on myself today. I weighted myself on Sunday and have gained back almost 4 lbs. I was down 24lbs since I started my pre op diet, and now I have gained 4 lbs back. I havent been eating anything close to what I was and I just dont get it. I have not been exercising, but thats because last Friday I split 2 of my incisions and was in a lot of pain again.

I just dont know what to do. Its so discouraging. I am not going for my first fill until January 4. I am so scared I am going to gain all the weight back that I worked so hard to loose.