Hey,
I don't know much about these conditions and I'm new to this whole site, I'm only starting to get used to anxiety, but I know what you are going through... Its fear of the unknown and it's terrible.
I think that some of your worry is for naught.. How do I explain this, I think a lot of the paranoia/panic in anxiety is subconscious, and subconsciously if you had HIV, your body would know, and you wouldn't really be worrying about the possibility of having it, you'd know you had it, but seeing as its all speculation at this point, so that could be your body/anxiety's way of saying you don't?
I often find myself obsessively worrying about the things I later find are fine.
Hope this helps "calm the beast" as it were, take care,
- ty
Based on your post, you do NOT have HIV.
You better treat your anxiety.