Weird vaginal discharge and itchiness.

I'm sexually active and the last time I had unprotected sex was yesterday which was two days after my period got over and no he didn't ejaculate in me, but I've been having itchy vagina and weird discharge before i even had unprotected sex. My vaginal discharge is clumpy almost curd type but also watery at the same time. It's curry first and after i clean up it's watery and the same cycle repeats. It also gives off a very weird smell and it is very very itchy around my vulva and around the beginning of the vaginal hole. Is it a yeast infection? If so, can I take my normal Candida vaginal tablets? I've had a yeast infection about 2-3 times already so I have the prescription ready, but this time it's a little different and i want to know if it's a yeast infection so i can go and purchase the tablets.