Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. If you are obese, then reduce weight by regular exercise, this will surely help. Rule out underlying causes like hypertension, high cholesterol, prostate problem, smoking, alcohol habit, and cardiac problem etcetera. Treatment of the above cause should be done if present. The penile angiogram is done if needed. The behavioral counseling is beneficial and also try to reduce stress. Do regular yoga, exercise well. If needed, your serum testosterone and prolactin will be checked. Do not try any self-medication. Consult psychiatrist for your counseling and examination. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Parth Goswami