C section incision pain

Hi everyone I’m 4 weeks Post partum and had a c section due to suspected large fetus.

Week 1 was rough but week 2 was better and 3? Even better.

So how come now at week 4 I feel like I took steps backwards since I’ve been feeling some soreness and pain around my incision. Not enough to cry in pain but enough where I need an Advil here and there and to lay down in bed.

Has anyone ever experience this? I know it takes time to heal but is it normal to take a few steps forwards and then a few steps backwards? I know healing isn’t linear but it stresses me out