You treat the symptom rather than try to treat an injured pituitary. Besides, the injuries are usually microscopic.
There are some situations where there becomes a simple chemical imbalance that, once corrected, will begin to work correctly again. Sort of a Catch-22. Get the chemicals back in balance and they can regain self regulation.
There are many of us who take hormone supplements. I take DHEA because my DHEA was low. I supplemented Testosterone while my DHEA was getting balanced.
Low thyroid is easy to treat, too.
Some of his issues can be due to his age. Once he finishes maturing, some of these symptoms may spontaneously resolve. His body and brain can continue to mature until he is about 25 years old.
Get a full hormone panel including all thyroid (4 tests), cortisol, testosterone, DHEA, and the rest.
Check out
https://www.womensinternational.com/..._referral.html for a hormone specialist in your area who understands male hormone levels. Their focus is women's hormones but also work with men's hormones. They also have the best prices for the hormone supplements that my wife and I have found.
Many doctors use a very broad range of acceptable hormone levels. Some of us need closer analysis.