My son is 21 years old and for the past 2 years he has been complaining about low energy, erectile problems, mood swings and not being able to sleep. He went to see a urologist who said his testerone levels were a little low and he put him on a gel patch. When my son was 10 years old he had legg calve perthis and and i have read that hip problems may play a part in his problems. Can you give me some advice on what he can do to help himself. He is not overweight, he works out, eats right, he has been smoking and now has stopped and drinks very little.