How did your body look and feel after recovering from a c section? Did your stoamch go back to normal?

My ob let me know he thinks I will have to have a c section delivery based off the baby's size and my risk factors etc. I would like insight into stories of women who have experienced this and had a healthy lifestyle afterward because I just keep hearing horror story's of the bad things that are likely to happen.. Before pregnancy I was 1.6m 43kg tone muscle from ballet dancing and teaching. I worry that I will have trouble to keep my body in shape for my job after the c section. I also worry about the incision healing. I have a *irrational* fear that the stitches will open up.