This one isn't all that informative. I would very much advise talking to your doctor and doing blood work FOR SURE.
Link in nat'l forum
This is a GREAT thread with many members I actually know:
Austin Thread re: T-therapy
Here's an informative site - not webmd - that provides more info. I didn't read all of it though.
Relationship between Testosterone & Hard Cocks
From what I gather - the first step BEFORE T-therapy would be to increase your regular cardio activity.
I'm sure for any man, just that simple cardio is beneficial to keeping the right balance of "stuff" in your muscles and hormones in your system. It is also beneficial before doing your cardio (even if it's just doing your walking or machines at the gym) to eat some kind of protein bar or shake. (again BEFORE your work out)
I'd hope you are also on a decent MEN'S multi-vitamin. The foods we all eat these days are not enough - Unless you have a personal chef feeding you a proper diet, well...more than likely you aren't giving your body the support it needs to break down fats, toxins, build muscle, even regulate sleep properly. I know I don't do what I'm suppose to all the time. (Growing up with a dad who is all about nutrition - I heard it and still hear it. LOL)