Hi auntiji ... i am saurabh . I am 21 . I masturbate ocassionally . I masturbate for 8 to 10 minutes but do not ejaculate . My foreskin slides back glans penis . But after 10 minutes of masturbation my penis hurts . I am masturbating since i was 16 but havent ejaculated even once . Please help me . Is this a problem?