Can someone get over my extreme fear of HIV?

Hello doctor,

I have been sexually active for nine years, and about two years ago, after a sexual encounter, I started to worry about it. It happened five years ago, and my symptoms included pain, weakness, and burning in my legs, thighs, and buttocks. After the sexual encounter, I tested many times with HIV rapid test kits (about 40 kits from four different manufacturers, all from the third and fourth generations).

I also have an OCD problem during the COVID epidemic. I feared Coronavirus, but after seeing a psychiatrist, I felt better in four months. After that, I lost 8.82 Ibs of weight, and the next year, I suddenly feared it was because I had HIV, so I tested myself 40 times with HIV rapid test kits, but the results were always negative.

So, please tell me because I am dying of anxiety if these symptoms are caused by neuropathy or HIV. My HIV tests came back negative, and I am worrying if these symptoms are caused by something else, like anxiety or stress. Should I test more or do other tests? Please help.