vaginal issue

I went to get tested thinking I have a yeast/some sort of infection that causes yeast like symptoms. i get dry, irritation during sex and feel extremely dry on the time! this has now been happening for the past 3-4yrs. I have had yeast infections. however test came back, absolutely nothing wrong(of course I'm excited) But why do I have the issues??? I constantly think about it, I don't want to even have sex. can someone please let me know what, if they have gone through this and what they did? I'm 27yrs old. I want to enjoy sex and feel confident and this is taking away from this. thank you!!!