so i went to the urologist due to some problems with erections and they said my penis looked fine, however i am still noticing some issues. -erections are not very firm, cant stay straight out or up., sags down -it is somewhat hard to gain erections -cannot have sex more than one time in 4 hours -it is difficult to maintain erections without constant stimulation -i subconciously contract my PC muscle constantly to aid in getting and keeping an erection -i dont get hard morning erections -dont really feel much pleasure from shaft, need to stimulate head to cum -loss of sensitivity on shaft -head doesnt enlarge when erect -when i tried jelqing, blood seemed to leave my penis -vein on top of penis is very large all the time -lose erections without stimulation in under 2 min -lose erection fast after orgasm -cant go for round 2 i used to over-masturbate, but have recently stopped/slowed this due to these conditions. i am young. 18 i think i may have leaking veins or something and if the urologist said i look fine, i dont know what to do. any ideas are greatly appreciated.