https://www.youtube.com/watch?v=mFnmosX-8-Iaan erection that won't go away (priapism). If you have an erection that lasts over 4 several hours, get medical help instantly. If It's not taken care of straight away, priapism can forever harm your penis. unexpected eyesight decline in one or both of those eyes. Unexpected eyesight loss in one or both e