I have had white stuff in my vagina for weeks. this happened afew days after having sex. it's not itchy but it's really worrying me?

Vaginitis: A vaginal infection is likely and if you see a gynecologist and vaginitis is diagnosed and treated,be sure to have your sexual partner evaluated by a physician and, if necessary, treated for an infection also.

GYN: You will need a pelvic examinattion and a culture of the discharge: this could be normal, fungal or bacterial- get a GYN exam.