[X] Go looking for an expert on magic. It's not just a weird tattoo./ It might do all sorts of things and you should really get help before you manage to do something worse to yourself.
[X] Go to a church and dip your hands in some holy water right now. Just to be sure. And then take a few water bottles with you just in case it doesn't do anything and you can convince a priest to bless them. They might come in handy later and it never hurts to be prepared. Especially since you had no idea if this might make you more attractive to magical threats.
[x] Tell your roommate Malaya. She should be in and just in case something like this happens again, she would be able to call for help. You had no guarantee you wouldn't do anything weird to yourself in your sleep.
-[x] Go to a church and dip your hands in some holy water right now. Just to be sure. And then take a few water bottles with you just in case it doesn't do anything and you can convince a priest to bless them. They might come in handy later and it never hurts to be prepared. Especially since you had no idea if this might make you more attractive to magical threats.