This is an irrational fear. There is absolutely no scope for the virus to be transmitted in the fashion you have described.
Below are the only risk for transmission in adults:
1. Unprotected vaginal or anal intercourse.
2. Sharing needles to inject drugs with other users.
I repeat, no risk. Testing is not recommended.
What about treating your ocd? You have that as your user name so are aware that your fears are likely related to mental health issues. These are treatable and you should consider doing that. Mike_no shared how HIV is transmitted. Those are the only ways. But if you can not live your life freely without experiencing great fear and panic over ordinary and harmless things, please talk to a doctor.