Basically for a while now I ve had a problem with my penis and scrotum. When ever I get the slightest bit nervous my scrotum shrivels up inside my body and my penis gets incredibly small. Very uncomfortable. This also happens in cold weather. I understand they shrink but this is worse than normal. My gential are very cold all the time. Freezing. I also have a problem with shrinkage when I go to the toilet
Degree understand your concerns went through your details. I am unable to find your age from your question. Assuming that you are a healthy person in his young adulthood or middle age, I answer this question. Penis and the scrotum do shrink when people are nervous, anxious, during cold weather etc. and that is quite normal. You say that it is beyond normal. That is where you have to understand the normal shrinkage. As age advance, the penis actually shrinks. But that proportion is very minute. Shrinkage happens when the body pulls out blood from that part because some other part of your body needs more blood. Therefore, the channelization. This is a natural procedure, and you cannot control it. My suggestion would be you don't have to worry unless you have any sexual erection or ejaculation problems. If you worry about this too much, obsession and anxiety shall result and which in turn can be reason for ED or PE. If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible. Hope this answers your query.  Further clarifications are welcome. Good luck. Take care.