I think you just need to understand that it is major surgery so you need and must take it as easy as possible. Yes it is uncomfortable afterwards for a few weeks as they cut through the muscle. This isn't unexplained pain which would worry you, this is like when you have overdone it in a body conditioning class and your abs hurt except it lasts a bit longer.
Knowing this means you understand you must take it easy, do not clean or even hoover. Do the bare minimum until you feel ready. Don't be thinking you should be doing stuff. You would be amazed at how many things you do require your core muscle group. Enlist help, do not martyr yourself, get your partner/Dh to do as much as possible.
I had an rushed EMCS after a failed 25 hour labour with a baby in distress so was just exhausted. Recovery was great though. Then I chose an ELCS with Ds2 which was incredibly calm compared to the first one. It was a lovely experience.
As you know it is coming up, fill up your freezer, get a keep hot cup so you tea/coffee stays hot, plan easy snack food. And don't worry so much, you will have your baby to help distract you from any discomfort. Brace yourself when you sneeze, I put a pillow over my stomach to be able to wrap my arm around myself. Wear big big knickers, the huge ones that will go up to your belly to keep it off the scar, wear baggy joggers or pyjama bottoms and be comfortable. This isn't a fashion show.
And this will all fade into some distant memory some day. My sons are now 17 and 14 years old. 