Pelvic Floor Issues After Vaginal Births: Seeking Advice

I had two babies vaginally. I wasn’t advised to do anything to repair my pelvic floor. Ever since I have had shooting ovary pain (no diagnosis but it’s infrequent), pain during sex (no diagnosis) and something under my ribs that feels like a hernia when I stretch in a certain way (no diagnosis, symptoms are worsening. Applying pressure helps alleviate). Doctors haven’t diagnosed any of these issues which started after the babies. And as I age these things are getting worse. Everything feels like it’s dropped to my low belly. Muscles in my abdominal wall seem to be weakening. I am wondering if there is anyone here who has had similar issues? I guess I need to exercise to alleviate these things but I don’t know where to start. What kinds of exercises will even help? Could some exercise make it worse?