I start thinking that I am seriously turning into a lesbian (some symptoms started several years ago) and when I found out about such a thing as HOCD, I simply started 'sticking' to it in order to deny my appearing homosexuality.
I am 29 years old and I really don't want to be a lesbian but I feel like I almost completely lost my attraction to men and I find it hard now to imagine my future with a man. I grew up believing I was straight therefore turning into lesbian is not something I expected or wanted. It makes me very sad.
I agree with Nature7 that you need to see a doctor. No matter what your sexual orientation is, OCD can totally mess you up to the point that you really don't know your identity anymore. I read an interview online with American Psychologist who specialises in OCD treatment.