Что вызывает боль во влагалище после секса?

TMI POST. 🚨🚨🚨

So I've had this burning\aching sensation in my vagina. It's not a UTI or bladder infections. It's been on and off for weeks and I've been checked because I've mentioned to my dr i mite have one. She said everything's clean. Anyways, it's been coming after sex. Last night it got really bad. I thought I had a contraction rite at the end. The pain went away after a bit. Now I'm wide awake and in pain. It feels great when I sit on the toilet. Maybe the sitting up position since I'm not actually peeing or anything? I'm making myself a bath now because I can't sleep and I can't figure out what's causing the pain:( any one else with this issue?? I'm assuming sex is the cause which is why I added that. But it's now five in the morning and has come back with no warning.