What Might Be The Causes Of Joint Aches And Pain In Shoulders And Wrists? Suggest Remedies

Hello, 7 weeks ago I had a possible exposure from giving a man oral with a open cut where my wisdom tooth was coming through. There was no ejaculation in my mouth but since then i have had a slight cold and the sudden onset of horrible aching in my forearms which then spread around my body. I now have horrible pain in my shoulders, wrists and hands. I keep waking up and my fingers are seized up so I can't open them. I had a hiv test done at just under 6 weeks which came back negative but how trust worthy can that be? It wasn't the rapid test but instead one of the tests that take a week to get your results. I just want to know what else these horrible aches could be in my joints? i'm not sure if it could be anxiety or stress because they started before i had even looked up symptoms.... any advice would be great. I'm so worried about this whole situation.

thanks