OCD fears of paedophilia?

Hi
I have looked on this forum before, and wanted to hear your thoughts. I am a 20 yr old female, and am diagnosed with pure-obsessional OCD. For the past 2 years I have had the irrational fear of being a paedophile, with constant mental checking, obsessing over whether ive done something sexual with a child etc. which i know is common with OCD.
However, I have sudden moments of panic and dont know whether it's the OCD or if it's real. When I mentally 'check' my attractions, I picture a naked adult and get aroused. I know I'm attracted predominantly to adults. I am also bisexual and turned on by females for the record. I then try and picture a naked female child, which disgusts me, i feel awful just 'testing.' The thing is, I have often felt arousal when imagining a female child's genital area. I would be turned on by an adult females, but I also feel I would get turned on by a childs which horrifies me. Maybe it's due to the fact that they have smooth skin and the taboo 'innocence' of it. Because when I see a child as a whole, they dont arouse me.
I fear that this means I have mild paedophilic tendencies. But I dont know whether it's OCD or I should just ignore it. I have never felt the desire to have sex with child, nor have I fantasised about it. I love my boyfriend very much and have all these terrible fears thinking he would hate me if he knew I even had a vague attraction like that, so our relationship is a lie. Is this true? Am I sick?
Please help
Thank you

No, you're not "sick." It sounds like you're just obsessing. From what I've read on these forum it seems OCD can trick people into thinking they have pedophilia when they really don't. Many people would find they could be slightly attracted to a lot of different things if they sat around all day "checking" for it. The clinical definition of pedophilia requires that the attraction be intense, sexually arousing, and recurring over the past 6 months. It doesn't sound like this is the case with you.