My vagina been itchin and having thick white discharge sometimes?

Suspect yeast: Itching with a think whitish discharge is very suspicious for a yeast infection. There are plenty of OTC meds which you can try first (ask your pharmacist) or you can see a doctor to be sure. If you have any concern about STDs, then see a doctor.

Yeast infection: Women with these symptoms usually benefit from treatment for vaginal yeast infection. If you recently took antibiotics or use any perfumed product in or around the vagina, you may have one. Consult your doctor or urgent care for evaluation and treatment.