The glans on my penis is overly sensitive up to, during and after orgasm. Any friction just before orgasm is uncomfortable and, obviously, diminishes sexual pleasure. The glans is also a little red at the top/front side (but not on the sides) - I also experienced discomfort from friction when wearing loose underwear (so I started wearing underwear with 5% spandex). I've only noticed this sensitivity with the last 8 months or so (before that I had never noticed any problem). I have never had sex. I'm circumcised. Also, before and during orgasm the head of my penis gets much bigger, and then, almost immediately diminishes a lot in size (although my penis is still erect) - at this point I notice white lines, like dryness, and after a few minutes they disappear. What could these symptoms indicate? What could be causing the problem? I'm worried that sex will be uncomfortable. Please help. Any suggestions would be immensely appreciated.