RCs IV ethylphenidate and vaginal bleeding

Hello all. I just wanted to post something mentioning a strange side-effect I have had from ethylphenidate, when administered by IV route. I have noticed that very soon after the shot, I will experience a tiny bit of vaginal bleeding. It's very minor, not like a period or anything, and it seems to happen once per shot - I simply noticed it when I went to the bathroom. This has now happened several times, and for this and other reasons, I shall probably not be doing ethylphenidate again. However, I thought that I should probably mention it to the wider internet at large, since these are the sort of slightly-embarrasing-and-minor things that people don't bring up, and if a potential side-effect is never mentioned to the drug using community, it can't be confirmed with other user reports.

So, just noting.