18.5 weeks and c/s scar is really painful/angry

18.5 weeks along with my second baby who I delivered via emergency c/section and my scar is getting very painful. I feel tearing and pulling sensations underneath the area and my pubic bone hurts like hell. The scar area is very red and inflamed looking but the sensation is ice cold, like the feeling of so cold it hurts (of course it isn’t, it’s actually very hot to touch but that’s what it feels like). Should I be worried? I will contact my midwife or doctor tomorrow about this but I just can’t sleep because of it so thought I’d ask what you all think of it? I’ll add a pic too. The skin across the scar area looks like

would be super tight and that’s what’s causing the redness on the skin but it’s not, it’s actually not tight there at all but perhaps it’s stretching and right underneath the top layer?

I’d love to hear anyone’s experience with a c/s scar in second pregnancies? Surely this can’t be what I’m going to suffer for the rest of my pregnancy? 😐