I am an 18 year old female that has recently started having pain during sex (around the opening) and wanted to know if there was any explanation. My smell down there has also gotten more distinct, and off; with my discharge being thicker than usual. There's no irritations or swelling, but my partner has had a swollen lymph node in his armpit and one around his groin (if this is relevant). I want to get tested for a few things since I am sexually active and recently didn't use a condom. Also I have an IUD, Which can tend to irregular my periods.