im concerned..

So Im in a relationship of 7 months. My significant other and I do have sex quite often but lately over the past week and a half, its been.. different? It starts off a little painful for me and not in the good way, I even got swollen down there twice. It hasnt happened again but it still worries me ! I also have been leaving a lot of discharge which I usually never do. Im concerned that I have something going on down there that I dont know about and I just want to be safe. help me out ladies ! :(