I tend to stretch every morning or during the night after my body has been in position for a long period of time. I feel a burning sensation & soreness, not necessarily pain when stretching. Also, during intercourse I noticed that I tend to use abdominal muscles. Can I hurt or damage muscle repair? I don't feel pain, just soreness during & after. My PS told me I can have sex as long as it's comfortable so we started 1 wk PO. We try to be gentle, but again, I happen to use my abdominal muscles.