Hi Gem2
I have an anterior and posterior prolapse and I started having small amounts of spotting after sex. This was during lockdown so couldn’t see anyone about it for ages. Then I started suffering with full scale vaginal atrophy ie) could hardly walk or sit down and was in a lot of pain. I had no idea what was causing my symptoms. I was eventually seen by a GP and was eventually prescribed vaginal oestrogen and steroid ointment, which has helped.
As you’ve been checked out for anything else, I’d suggest going back to your GP and asking for oestrogen. Probably TMI again, but if my prolapse is protruding more than it does at other times, the soreness and spotting are worse, as you say because it’s rubbing. You need to get it addressed before it gets any worse, as mine did. Hope this helps.