REALLY SERIOUS

Yesterday morning I woke up with yellow lumps in my vagina I am 15 and have slept with one person who had only slept with me and I got there lumps a few days after we last slept together. It’s not itchy and I don’t get a burning sensation when peeing. The area around the lumps is swollen and sore. I’m on period so it’s hard to tell if there is an excessive amount of discharge or a funny smell. I don’t know weather to post a picture but I really need help.

UPDATE 1

I am heading to a drop in centre now so hopefully I’ll get told what I have I’ll keep y’all updated