Strange discharge

Melanie
I get this sticky white discharge but when I go to the gyno they tell me I either have a small yeast infection or I don't have anything at all. I've been treated for yeast infections probably 5 or 6 times within the last year and they never get better. I continue to have the same discharge.. It affects my sex life because I feel that it dries me out and I feel self conscious about it so I can't get aroused.  Has anybody else experienced anything like that? I don't have any stds so I'm just trying to figure out if it could be anything else or maybe birth control related?