Itchiness PLEASE HELP!

Hey, so recently I’ve had a very itchy and irritated pubic area, labia, and creases of my legs. I thought “maybe I just need to shave.” It didn’t work. It’s seriously so itchy and it feels like it itches more every time I scratch! It’s not a yeast infection (I’ve done the 3 day monistat ... itchiness was my only symptom) nor is it an STD (I’m a virgin... we still exist lol)... I don’t know what to do anymore! It recently got much hotter where I live and I am sweating more but I don’t know! I am a nursing student and I’ve looked in my OB books but I can’t find anything. Can anyone please help!!!

PS: I am overweight... don’t know if that would make a difference.