Sometimes I notice my chronic pelvic pain is worse at night, wakes me up at night, and then I start moaning, from the pain. What can cause it to be worse at night like this?  I have symptoms that are possible from endometriosis, but not diagnosed yet.

For an example: I just recently had my period end, but the chronic pain is still there, and last night(very early morning around 2 or 3am 7/18/22) is when the pain was noticeably worse.