Lil pimples on the skin of my penis they itching and if i start scrathing it it hurts can't really see them or feel them either....

Still... but...: Are you a regular hair shaver? If yes, the common overactive sebaceous glands of hair follicles may be further irritated. In some cases, scratching may induce skin rash-like change with itching; if so, gentle use of topical steroid cream and see. If not helpful or in doubt, see doc timely. With direct inspection, a more accurate DX can be entertained; but, what described more suggests benign...