My age is 18. I have feeling that when I walk the testis balls touch the legs. When I check there is no lump but at the end portion I touch I will think at the end of testis is ring type structure when I move testis this will also move. In touching the testis the nerves are high in one testis than other but there is no pain in testicle but some times cause discomfort I wear loose underwear. Please tell it is normal or not.