I'm a 30 yr old female with swollen groin lymph node. It only seems to swell only when I'm menstruating. I've seem my pcp and she ran std testing as I had my cpe last month.. All testing negative.. Hsv, hiv, gonorrhea, chlamydia, syphilis, etc... We tried antibiotics... No help.. Its been this way for about a year and a half. The swelling comes and goes, but never actually goes away... Now is maybe around 3 or 4 inchs long... Yes inches, not cm. Should i see my obgyn instead of my pcp? My pcp just wants to play the wait and watch game.