Issues...

So, I'm not thinking about, nor have I ever thought about having sex...Like, ever. I just think it would be awkward and gross and, I don't know maybe it's just me. But this past May, I had an epileptic seizure in Biology while we were discussing the reproductive system, and the topic of miscarriages was brought up. I'm perfectly fine with talking about this when my aunt was pregnant, and with my friends even. But for some reason, whenever the subject of anything like that (I almost had one a few years ago while talking about what gynecologists do in Home Ec.) comes up, something happens and I have a seizure. I don't know why. I'm afraid to ever go to one because I might freak out and have a seizure. Same goes for ever having sex. Am I being paranoid or is this an understandable fear to have?