Basically, I was with my girlfriend, and I was kissing on her chest. Then I started sucking on her nipples, the day after, my gums were very very sore, and swollen. And I couldn't eat anything, and then today when I woke up after a long night of breathing through my mouth due to a clogged nose, there was what looked like pus but completely white coming from some of my gums and they were also cut up pretty bad. It looks like someone who had gum disease for a while without getting it looked at. I think what happened was I essentially gave myself a hickey on my gums, which breaks blood vessels so maybe it cut off circulation to the bottom part of my gums, because it was slightly darker colored than the top of my gums.