Pain 7 months pp. Period related?

Hi all. I had my second c-section in June, and ever since, I just don’t feel like myself. I feel like something is going on, but I don’t know what.

I’ve been having pelvic pain on one side that seems to flare up about a week and a half before my period, and lasts until a few days after. It even occurs when I use the restroom. I’ve had a pelvic ultrasound and CT scan, which were both fine. Then about two weeks ago, I began having excruciating lower back pain, to the point of not wanting to even stand for any period of time... then it eased up a few days after my period ended. It’s still there, but the worst has passed. I am super hormonal, and I cry at the smallest things. My tubes were removed so there is no possibility of pregnancy.

Has anyone experienced anything similar before? Thanks.