I am a circumcised male 50 years old.Starting about 9 mos ago my foreskin would tear and bleed just under the head of my penis during sex.It is very painfull , and most of the time unable to continue.It gets extremely itchy around the the head also.Now recently I've noticed the underside of the head of my penis turning a pale whitish color,like restricted circulation or something.Any help out there.