I have had a fear of catching hepatitis for some time and a couple of things this year have left me worried. First of all, I was living in a shared house for a while as I was studying abroad. I had finished showering and reached down to pick up my hair from the plughole and I got this brown stuff on my finger, on the nail. It could have been rust or dirt but also could have been blood? I can't stop thinking that it might have been period blood or something and I could have got something.
A while after that, I was at a bar and the glass I was given was not clean. I am not sure if it had been washed or if someone else had even used it before me. I was a little drunk and stupidly used it anyway. I asked my friend if I could catch something and she said hepatitis, not knowing how much I worry about it. She said she was joking but I can't stop worrying now. I got vaccinated against Hep B 2 months ago, but that was after these incidents. Should I be worried?