I am 18 years old and i have been sexually active in the past. I have had a problem that seems to be repetitive. I've noticed that i have these very small pimple like cysts on my labia and on the area around my vagina. I have popped them and a hard ball comes out. Last time i have had this was about a month and a half ago. After i popped them they bled for a little bit but then they cleared up, but they are back.... Should I be worried??