So I had a C-section almost 4 months ago.....I healed pretty fast, no complications, the doctor said…

So I had a C-section almost 4 months ago.....I healed pretty fast, no complications, the doctor said I healed beautifully. The last couple days I've been having some tenderness and pain around the incision...could it just be the muscle coming back? I have a physical with my primary doctor tomorrow and I was going to mention it, just wondering if anyone else had this happen?