I'm 18 yrs old and i'm experiencing excessive vaginal discharge accompanied by terrible itching.It causes a great pain during urination.My doctor advised me to drink a lot of water &said that it is quite usual.But i'm not comfortable and i can't go with this anymore.Since i;m a college student it causes me a great irritation.And also i'm experiencing severe back pain and leg pain.And in the evenings my underwears are wetted with this discharge.help me with a suitable solution and i want to know whether it is a common problem or will it cause any severe problems in the future