I injected into my delt wrong & must have went through an artery or something about a month ago. but didnt hurt, the next day my whole delt below the spot was bruised - then the bruise actually dripped down (beneith the skin) to my tricepts. If this happens to anyone - use the heating pad to get rid of the bruise! -- scary shit!
you would just throw up everywhere, get light headed, dizzy, you that kind of stuff. If you hit a vien your going to have problems, an artery just get a big bruse.