I'm always going to suggest seeing a physician. Keep in mind that whatever is recorded is 100% confidential and will be available only to health care professionals and yourself.
Testing for
metabolicMetabolic acidosis disordersAdjustment disorder
Anorexia nervosa
Asperger syndrome
Autism
Autoimmune disorders
Bipolar disorder
Bipolar disorder
Bleeding disorders
Borderline personality disorder
Bulimia
Chronic motor tic disorder - like thyroid diseases, testosterone deficiency, and diabetes - should be routinely done.
You can also consider an ultrasound the penis to ensure proper blood flow.
If there are no physical causes, psychological causes can be considered.
These options can be discussed with your personal physician or urologist.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_b