Yeast infection (man)? or….?

Yeast infection (man)? or….?
My problem is about two month ago me and my partner were experimenting with anal sex. At one point I slipped out and tried to go in but got in the wrong place. She go an infection and she treated it. She was fine but a few days after we had sex she got another. We were thinking that she kept getting it because of "the pill" she says that some birth control pills may cause it. Well I was beginning to think that I have it (the yeast infection) and i am the one giving to her. My research says that yes it is possible for to be interchanging it, but I want to know i anyone else has had these symptoms (and no i have not slept with anyone who may have any std). I looked up some picture of yeast infections and I don’t like like that (even after this long period). I actually look like normal. I have no itching. No pimples, not redness, no puss, no burning sensations, it doesn’t physically bother me, and I don’t feel tired or anything. The only thing that is bothering me is that sometimes when i rub my "head" stuff "rolls/rubs off" kinda like if u had dirty hands and u were to rub your hands together. Its not my skin cause there would be peeling. When i wash it come off and then it takes a while for it to come back again. There might be a smell but nothing that is noticeable (just open that it might be there). Its weird im planning on going to the doctor as soon as I get my insurance but I want to know if anyone had this experience or knows what wrong with me. (anything specific?)

I have heard that men can carry yeast/bacterial infections and continually pass them on to the same woman, but do not suffer from any effects.