You are not describing OCD. You are describing a phobia about HIV, which is common, and also a possibility you are in a job you don't like. I would seek psychological help in therapy if one exists there more than a doctor. Now, you may in fact have OCD, but you can't self-diagnose. That's a very wealthy country, I'm guessing they do have therapists there if only for the people who come from other countries to work there. If you can afford it, I think that's the best idea. If that option doesn't exist, educate yourself as much as possible about how one actually gets HIV. But I do think therapy is the best advise.