I am afraid I might have contracted HIV. So after a workout, I sat in my sweaty briefs on what might have been a blood stain (3 day old stain) of a person with HIV on a bed sheet. After I washed my hands I obliviously wiped them on the same briefs with which I sat on the sheet stain. After that I touched my penis for a prolonged time in the process of masturbating and showering and washing it.
Several days later, today, I was holding a sheet to put in a bag when the lady who gave me the sheet took it from my hands to put it in her self. Now, my hands are cracked and flayed by the dry cold weather, my knuckles full of wounds and sores. There isn't blood on any of them but one or two wounds are open and wet and shiny red, though no blood comes out of it even when wiped.
My questions are 1. Could I have contracted the virus in the manner I described 2. If the wet red wound on my hand came in contact with the part of the sheet the woman touched with her hands, and she had an open wound on her hands or on another body part she later touches, or if she touches her genitalia later with that hsnd for some reason before washing it, could she contract it from me if I have it? I feel horrible and consider whether I should tell her to get post contact prophylaxis, but don't know how to do so, she is a complete stranger to me.