What Causes Excess Of Vaginal Discharge And Dry Skin On Vagina?

I am 32 years of age and a smoker. I am 5'6 and weigh about 145 pds. I have been suffering with bouts of vaginal odor for 2 years (around the time I started smoking, came off of yaz and had 2 cryo treatments for excessive vaginal discharge, i was also douching with alum frequently). I frequently get BV and am currently taking Flagyl. I also frequently get very dry in the vagina. I used a replense yesterday along with the premarin cream (only on the vaginal opening) yesterday. Now I am very dry and have what appears to be skin in the vagina, like its shedding. It looks like little rolled up pieces of toilet paper. This totally alters my sex life with my husband. It is very embarassing and I have to hide it from him. I tend to get the odor after sex, not everytime, but I can always tell its coming because of the way my vagina feels, kinda itchy and dry.... What is going on with me? I don't douche anymore. I did in the beginning of our relationship two years ago frequently with alum but have not douched in forever. I should own the Represh company by now. I am so frustrated. I go to my doc constantly. I was recently tested for all STD's and was clear. Please help!!!!