OCD anxiety?

Well lately i've been having very terrible anxiety and followed with this is nausea and a bunch of weird phobias.

Like if i watch a news report on someone abusing an animal i feel like "What if i become an animal abuser?" And i obsess over it, And my latest fear is the fear of becoming gay, I've never been attracted to other men, I've always liked women and i'm in a relationship now and i love it. I've never had any gay experiences or nothing, Except when i was like 10 years old but that doesn't really mean much i don't think, at that time i'd never had any girlfriends and it was nothing seriously with kids the same age as me. I've read somewhere that if you are anxious about these sorts of things you are most likely NOT what your thinking, Because if i were gay or if i did like to say hurt animals. I wouldn't be worried about it would i?

I needed to kinda vent on here i'm sorry, Any reassurance would be great.