For a long time I have had a shrinkage problem when I do any physical activity my penis shrinks so bad I usually stop not long after I started. It doesnt really hurt but it is really uncomfortable. It’s gotten to the point where I have gained weight because I really can’t do any hard exercise and running is almost impossible for to do with any comfort. I have been stupid in not going to the doctor and plan on going sometime in the future. I just want to know if anyone else has this problem or has heard of it before. I may post pics to show how extreme it is. When I am fully erect I am about 6 inches but have always thought maybe this problem could be causing me length problems.