Yesterday I was at school and my friend told me that I had a "scratch" on my cheek..it's not like a deep cut, but it's like a small line that is kind of raised off the skin like a scratch...now I have 4! they're not very noticeable but I don't know how they got there!?! I don't have long nails, and don't scratch my face like that...what could they be?

they don't hurt either