I went down on my girlfriend when she was asleep but i didn't know she was on her period. Where it was dark i didn't see anything but it tasted weird. After a while i finished up and went to the bathroom because my eye began to sting. Looking in the mirror i kinda saw blood around my mouth and in my eye. When i went back she woke up and was unaware of anything..it was only in the morning she told me she came on in her sleep. What do i do? Will i go blind or even die?