Itchy Vagina for over a year

I think I’m gonna loose my mind. I have been having an itchy vagina over a year now. I got a yeast infection last year..I didnt take anything for it and it went away. The discharge went away but the itching never did. I went to my gyno and he gave me some pills to take orally some vaginal infections and a cream to rub. The itching came back as soon as I finished taking all the meds.

I bought Monistat and used it but as soon as I stopped using it the itching returned so I went to my GP she told me that it was a yeast infection. She gave me Diflucan and flagyl and sent me to test for Clamidya,hiv, and some other std’s. They all came back negative, she also gave me a pap smear. I went back to her a few more times and she gave me the same medication which clearly were not working.

I decided to try some natural remedies, I tried…T-tree oil, Vinegar,Yogurt,etc,etc Nothing woked… So I went to another doctor he told me that it looked like a fungus and gave me Ketaconozole and Flagyl. It seemed to be working until I took the last tablet and The itch came back. I also changed my soap and I’m now using a hypo allergenic soap.

I have no idea what it can be…I havent had sex since I noticed the first itch last year.I keep myself clean. Right now the symptoms are itching and and recently odour.Can someone please help me. I go back to my gyno in a couple weeks. sigh