so i had a pimple on the left vaginal lip, i popped it and it went away. then i had a second bump, but this one felt harder. i tried to pop it and it felt like it did, but nothing happened and then my lip swelled up and now it feels bruised and it kinda feels hard inside. i'm almost positive it's not an std, but the swelling scares me. is there any way it's a nerve? or i just irritated it?