I took antibiotics (Flagyl) in the beginning of September 07. After I took it I got a yeast infection. (I had never had one before). It went away after taking fluconazole.
About Nov 5th I got another yeast infection. The dr prescribed me fluconazole tablet. I took that and it did not help. Then she prescribed me another fluconazole and Monistat 7. I still had slight itching
You have no reason to worry about. If you have not have unprotected sex anywhere else except with your committed partner, you are safe. Do not think to much about symptoms, they do not mean much and also, yeast alone is not necessarily due to HIV, better talk to your doctor, she will be the best person to explain it to you.
Remember, nobody can give something he does not have, same goes with your boyfriend, since he does not have HIV,, so why to worry, relax and enjoy your life.
If what you stated before is it, then you don't have anything to worry about. Take a deep breath and if you haven't had a test in awhile, why don't you and your fiance test together? I know you said he was negative, but doing it together will give you someone to hold onto while you wait for the results and you will both know your status for sure.