When I poke my left nipple it hurts, its hurt about 2 months now, my right one doesnt hurt at all, i dont want it to be something serious, but if it is, i should know, it doesnt feel like theres a lump and i dont have any of the signs of cancer like grayish leaking nipple, but I have a small lump on my penis, like i said in my previous question and i sincerly hope my body isnt like covered in cancer.