can any one answer me please

Your trouble may be anything from friction bumps, lymph glands, clogged pores to the "H" word, best thing to do is have your self checked out. Sounds like friction my be causing your problem though, if your constantly active: walking, jogging, running, sweat and dead skin cells tend to build up over time (even though showers have been taken)Oh yeah and if your tighty whiteys are to "tight" switch to boxers and let em' hang... Hey do what ya' have to do to find a valid solution.
** This doesn't have anything to do with your problem but my scalp constantly itches like mad,it's as if I have OCD or something (scratching at my scalp every 5-10 minutes until it's numb or just stops itching), I keep switching shampoo and conditioner but nothing helps, itching sucks.Um Yeah and bumps do too.**
Later dude!
R.C