Sti or yeast infection????

So I have sex in May 2018 and it was unprotected and just 3-4 weeks ago I’ve been itching around my vulva and had some with discharge sometimes and also with I masturbate and it also have a strong odour down there and I’ve been using the washroom frequently. The symptoms also showed up when I was still a virgin but its got worse and I’ve had a sore throat every time I wake up but I never did oral and I shower every day or every other day.