welcome to HCM and thanks for your query.
You need physical examination to check if the private parts are normal.
Also the doc will go through your sexual history in detail to get into the root cause of the problem and assist you in getting better.
You can consult either a urologist
or a psychiatrist
. I would suggest you to see a urologist first to get examined physically.
If a counselling
session is needed, he will refer you to a psychiatrist.
Wishing you good health