PID or cervical bruising?

I don’t even know where to START

I’ve just found out my long term boyfriend is a compulsive liar, although not the point!

A year and a half we’ve been together, I miscarried January 22 at 7 weeks and when I was pregnant I had this agonising pain during sex, I couldn’t breath I went all hot and just laid on the cold floor..after half an hour I was ok and normal again.

I then miscarried and assumed it was maybe part of that?

About 3/4 months after this I had this pain again during sex, not as painful but lasted 2 days.

About 3 months ago my periods became extremely painful to the point of unbearable! They’ve always been heavy but never painful!!

About two weeks ago I had this agonising pain again during sex. It lashed 3 days but the first day was so painful I couldn’t sleep!

I’ve just had my period with no pain at all.

I’ve got rid of my boyfriend for various reasons to do with lying and now he’s told me he lied that he was STI tested before we were together! I didn’t test stupidly because I believed we were both clear!

We had regular sex with no pain, he’s bigger than my previous partners by quite a bit and I’m pretty sensitive down there.. maybe bruising?

Has anyone else had anything like this, I’m booking an apt with my doctor but looking for some help from you all?