What's wrong with my Vajay?

This has been going on since august 2009. One fateful day my V really itched after . Like uncontrollably. Then, it relaxed. I put yogurt in it and drank apple cider vinegar etc and it abated. In the fall, I would have some days that were fine, and other when my vag would be itchy/ sensitive. Then in december I noticed that my labia minor were DRY! and actually peeling! I know. Anyway so I still had no idea what it could be bc I didn't have "gross" discharge, no smell. And I wasn't THAT itchy. Anyway it still bothered me so beg of January I decided to use monistat three days and see what happened, I presumed I had a yeast infection. I believe it went away, my V felt comfortable etc. Ecstatic. BUT. Last week I had in my pool and the next day-SO itchy and felt like it had before. Now I have heavy discharge, white, not cottage cheese like though, and its not that itchy but again I see the dry chapped inner labia. Its been a week and it feels bad. Like it did before...I feel so defeated. Very sad and confused. Yeast? Aidez moi :(