unexplained itch & discomfort

alright, been dealing with an itch & discomfort on the outside of my vagina. more like pubic hair area for about a month. been tested for ALL std’s, as well as yeast n BV, tested for uti’s. everything has come back negative. i only use warm water down there, soo it’s not soaps, been using the same detergent forever so it’s not that. my dr prescribed something for yeast, just to be sure, didnt work. was prescribed a gel to insert into my vagina for bv, helped a bit but still didn’t do the job. dr even looked down there herself & couldn’t find a problem. it’s start to take a toll on my life at this point, im scared to have sex, i don’t want to give my significant other an itch.

dont even feel like myself anymore bc of this. has anybody experienced this? any suggestions on what to do?