I have had 3 C's as well and each one WAS harder especially because I had little ones running around with each subsequint c section. My 3rd and final c ssection I had my tubes tied as well and that made me more sore. Also, it takes longer for the subsequint ones to heal becasue the skin has been damaged so many times. with my 3rd one, the day I got home from the hospital, I was climbing up in my bed to get into bed (I had literally just gotten home) and my incision split open (on the top layer) and blood and fluid squirted out everywhere and I thought I was dying...
turned out that I had a SEROMA (fluid build up behind the incision and it caused pressure to build up and rupture the skin to release the pressure built up). if it has not done that I would have gotten an infection and could have gotten Super sick... but it all turned ok. It took 8 weeks of packing the wound for it to heal on its own but that is my multiple c story.
You are probably bruised inside and its just sore...if you had any bleeding inside the skin on the outside would bruise and turn red/and purple.
Hope that helps, feel better soon!
A. J