What you are having could be erectile dysfunction which is psychological in nature. This is usually due to stress, alcohol or tiredness. Common causes causing erection problem are stress and anxiety, poor communication with your partner, unrealistic sexual expectations, which make sex a task rather than a pleasure, negative feelings about non performance, smoking, alcohol and sometimes illicit drugs and medical conditions like diabetes, high blood pressure, heart or thyroid conditions, poor circulation, low testosterone, depression, spinal cord injury, nerve damage (for example, from prostate surgery), or neurologic disorders (such as multiple sclerosis or Parkinson's disease).
Medications such as blood pressure medications (especially beta-blockers), heart medications (such as digoxin), some peptic ulcer medications, sleeping pills, and antidepressants may also cause erectile dysfunction.
Talk to your partner openly about any fears or apprehensions, eat nutritious healthy food, exercise regularly and cut down on smoking or alcohol if you are taking it.
If still a problem then please get yourself evaluated for the medical conditions mentioned above.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Thank you very much for your prognosis which I find interesting.
As I said I am extremely fit and have an excellent circulation system, I do not smoke, take alcohol or drugs (either prescribed nor purchased). Medically I do not suffer from high blood pressure, diabetes, heart, thyroid, nor have had prostate surgery nor suffer from any neurological disorder.
Interesting enough I recently took early retirement and have little by way of stress. To be honest I am so fortunate to be very healthy. When I saw my doctor he said there was nothing wrong with my ‘internal plumbing’ as I get erections in the morning and prescribed Viagra.
It was in speaking to a friend that they mentioned low testosterone which you have mentioned in your response. If this is the case what can I do to boast my testosterone levels.