In the beginning of october i masturbated when i came off my period. everything was fine until i woke the next day and felt burning and irritation on the inner lips. also my discharge is bright yellow and chunky.(it doesnt hurt when i urinate) help?

Sounds like Infectio: You should see a Board-Certified Gynecologst, You probably have an infection of the vulva or vagina (an infection of the cerix is a long shot), The fact that you don't have burning makes a bladder or urethral infection unlikely but not impossible. Whether or not "dirty hands played a role is debatable--your menstrual blood should bd sterile.