I've been on T for almost 11 years, stopped bleeding after my second shot, and have never had any spotting or random periods or anything like that, although I have occasionally gotten period-like cramps after orgasm. About two years ago, maybe 30 minutes after a particularly strong orgasm (purely from external stimulation, no penetration of any kind), I noticed a couple blobs of bright red, stringy blood in the toilet. This continued for about 3-4 months and then stopped; it only happened after having an orgasm, and only once or twice after. Otherwise, no bleeding of any kind. I went to my doctor about it, and she said it was nothing to worry about, probably just some blood being pushed out as a result of uterine contractions, and that non-trans women have this happen occasionally, too. I can't remember this ever happening to me before T, and I'm pretty sure I've never heard of it happening to anyone (not that that means it doesn't, of course), so it kind of freaked me out. My doctor did a pap, and that came back completely normal. Then it went away for awhile so I kind of quit worrying about it.
It started happening again this week, almost exactly two years after the last time. I'm seeing my doctor this week anyway, and will definitely address this with her, but I wanted to know whether anyone else has experienced anything like this before.
And please, I have a LOT of anxiety around health-related things, so if this is not something you or someone you know has experienced before, I ask that you spare me any "omg you should go to the doctor, you might have cancer!!" fear-mongering stuff. Thank you.