Normal?

So I have noticed the last couple days like a warm sensation in my abdomen. Is this from healing? I will be 3 weeks out tomorrow. I am just curious? It feels like the inside of my stomach area is warm. really weird but no discomfort or anything my belly also itches and I know itching is a sign of healing. Thank you for any feed back.

It's normal.  Just look for any red streaks, pus, or any fever which indicates infection.