I am a 26 year old male. For the past few months I have had a hard vein in the left side of my penis. It feels like it runs from the base of the penis to the tip. It doesn't seem to be going away. From time to time this vein seems to radiate a dull pain.
I'm not sure if this is related to my stress over the issue, or the actual issue, but erections have been less firm and more difficult to achieve.