Trev,
I know how you feel with the medical tests. I was quite ill last month and I had to go to the doctor. I was in pretty bad shape, as I hadn't eaten in five days, and before I knew it I was surrounded by nurses poking and examining without telling me what they were doing. But then the doctor walked in and got rid of them. Why? I had told her on some previous occasion that I was a survivor and that things like this distress me. She had thanked me right on the spot for being so honest with her, and she told me this would help her to help me in the future. She was right! When she saw me with all these nurses trying to get me hooked up for transfusions and so on, she knew how I would be feeling and she acted right away to get rid of these people. She apologized and did all the work herself and I felt a lot better.
If you feel you can, it wouldn't be a bad idea to tell your doctor you are a survivor. You don't need to go into details, and you are old enough that the doctor would have to respect your confidence.
On the feeling that you STILL don't even own your own body, it might help to know that these days physicals sometimes include HIV tests just as a matter of procedure. When I was ill, for example, they took blood samples "for tests", and I know that included HIV, though I didn't bother to ask. The important thing to remember is that the doctor isn't asking for the blood sample for HIV because he suspects you or thinks he knows something. It's just procedure.
But again, if you think you can somehow tell your doctor that you are a survivor, without going into the details, that does help him/her to help you in the future.
Much love,
Larry