Yeast infection??

Hey guys. I’ve been having intercourse with a new person that is my boyfriend and after having sex on Sunday my vagina felt off. It doesn’t burn or anything, I just have cottage cheese appearance and before I pee this watery milky discharge comes out. Last night I noticed that around my labia I was peeling (like dead skin?) but not anymore. I only have discomfort on my left side (like a little circle) towards the outside of labia. It stings like a cut or blister. Does this sound like a yeast infection or STD??