Hi Dr.
Below is my case

My name is Roger I am 29 yr old frm Mumbai working in an MNC I have been very active sexually in my life.
Last year on 1st October 2015 I had a brief unprotected sex with a CSW I got scared and I started googling as a result i tested myself many times from Metropolis for HIV 4th Generation Duo test after the below following weeks
7,12,23,25,28,31,36,40.
All came negative my worry and question is
1) I was confident after my seven weeks only but I had googled so much online dat i got obessed and went on testing myself.
How do i get rid of this obession?
2) Many forums say different things which confuses me please help me with % reliability of 4th Geneartion tests
4 Weeks, 6 weeks, 9 weeks, 12 Weeks.
3) I am suffering from OCD or psychological problem?
4) My last test was after 40 weeks of risky exposure with CSW and after six weeks of unprotected sex with my Fiancee (I am sude she is -ve) am I 100% HIV negative??
What should i do get off this thought I am fed up with these thoughts feeel lke killing myself
Please help with your insights?