So I (24f) Have been with my fiance (23m) for 8 years now and I love him very dearly. We used to have sex as often as we could and it always felt so good. We moved in together about 2 years ago and I noticed a bit of a decline on the sex which isn't a big deal, we were still happy. Lately though, sex has been a maybe once or twice monthly occurrence. Part of me really wants it, but I usually turn it down due to either feeling insecure or tired. Whenever we do have sex though, it's almost always painful afterwords. (Tmi real quick) my vagina feels almost like a burning sensation on the edge and slightly inside, sometimes it can be really painful even while he's inside me. It's made it almost impossible for me to enjoy myself and I'm desperate for a solution. I always "freshen up" down there right before we do it just in case so I initially thought maybe I'm just being too rough with myself, but it still hurts even if I don't have time to. I unfortunately don't have health insurance currently and have no way of getting checked out, though I know for a fact he's never cheated on me, so I at least know it's not an STI.
Any and all advice is greatly appreciated, I'm happy to answer any relevant questions that will help!