Since this page came up first on google, I'm gonna write, although the question is a few years back.
I suggest everyone who has those kinds of problems to educate themselves about porn induced erectile dysfunction. It's a thing, believe me. Start here:
https://www.yourbrainonporn.com
So I hope to find you, my story is the exact same as yours. It has caused me a world of problems. On top of it I don’t think my penis ever developed fully. Looks normal but the base is weak with small testicles. Please tell me by now you have found something. Thank you for the time you put into this. It’s spot on for me as well. Even around the age.
Hopefully since time has elapsed from your posting, you identified a solution.
If not it's truly critical that you find a Urologist you can be confident in. I'v learned this lesson the hard way. Many doctors and Urologist included have a visible phobia when it comes to our sexual function. Odd but hardly rare. The doctor will get into great detail about our prostate situation, yet never ask or talk to our sexual capabilities. A patient must bring that to the forefront. If the doctor is not comfortable with the subject...dump that doctor. Find a competent Urologist and start you discussion on the sexual aspect 1st, then the basic plumbing. If the conversation is fluid then you have a good doctor.
Testosterone test is basic as well as digital rectal, along with a candid discussion about your issue. If your nervous which is natural just write it down as a shopping list at home then hand it to the doctor. The best way to gain the best results from any doctor is to disclose your issues, concerns up front and openly...doctors are not mind readers. If for example you, smoke, drink or use 420/weed, drugs be up front...they need to know in order to RX correctly. At times surgical procedures are needed to correct a problem, yet read up on the topics and it will help you find the solutions.
Hi Mark, I think a co*k ring may help you, google myhardwear they have a few you can look at, and you can see some vids of them working, but they do work and give some good boners, if that is what your looking for?
Do hope this helps.
Good Luck