S4T: I recommend going on antidepressant medication. I read your posts and it appears that you are down more often than not. I can tell you first hand, it helps.
Not to say they haven't helped you, but I honestly believe that if you don't get your antidepressant meds right the first time, that's even more dangerous than going without. I think that going a more natural way might be the thing to do first, as long as he's not on other prescribed medications.
This is just my own observation, but I think you might be deficient in some Vitamin B's, Searching4Truth. You might be wondering, "Are you serious? How the heck is a vitamin going to help with how I feel?" You'd be surprised, actually. When I was younger, like in 1 and 3rd grade (When I was in 1st grade, I did part time 1st, part time 2nd, because my reading/spelling/English were more advanced than Math/Science/History.) I would be EXTREMELY stressed. I'd go off at my parents and siblings extremely easy. I was a firecracker. Big time.
Then, my mom decided to get me some vitamin B complex drops (because I couldn't swallow pills until I was in like 5th or 6th grade. At all), and oh my goodness, the difference was like night and day for me.
After a while, I stopped taking it. Then, when I was 12, I got really sick. Well, when I got better, I never truly "Got better." I was depressed again, I was stressed again. I went to a natural doctor (one who does vitamins and herbs instead of prescribed medications), and found out I was low in Omega/fatty acids, and once again, severely deficient in vitamin b's, because my body wouldn't absorb them properly in the food I ate. I also went gluten free. Let me tell you what, that did WONDERS for me.
Now, this is just my personal testimony on what that's done for me. I suggest trying to find a homeopathic doctor or a nutritionist.
But here an article on vitamin b and depression.
Vitamin Deficiencies and Depression