18M, don't take any medicine, don't smoke, don't do drugs, virgin. For a very long time when urinating my stream would get weak near the end and then stop without getting all the urine out, a small stream remains that I have to shoot out by contracting, it takes about 7-15 minutes (it varies within this range) for urine drops to completely finish, so non come out or remain within my privates after urinating, hours after urine tiny drops of urine will come out via my privates touching my pants, not all at once, it is spaced out.

Does anyone know what could be wrong with me? Is what I described about my stream dribbling and disapearing near the end withou finishing resulting in a stream of urine still inside normal?