I have to over concentrate to urinate. Any slight distraction shuts me down. Once I start I'm fine but starting is the problem. No other penile probs?

Social phobia. Social anxiety is an excessive fear of a social situation in which one has the perceived potential to be embarrassed or humiliated. Urination requires a synchronization between the sympathetic (flight/fight) and parasympathetic (rest/digest) nervous systems. If you fear you are being watched or need to "perform", you'll have an overly sympathetic response, preventing you from urinating.
Shy bladder. You have shy bladder. Work on relaxing, and you will find that it helps.