Normal or Not Normal 😫

So im 8 weeks pp with repeat c section. my scar is all closed up. BUT idk why on top of the scar like not the insicion itself but right above... it gets kinda swollen blisteries bubbles. you cant really feel them but they are visible to the eye when i point it out.... usually they're flat out but whenever i sit for to long or do any sort of strength they pop up... NO pain. NO redness. No hot to the touch. NO discharge of any short. NO ANYTHING. its just weird to me... what's your input