I had this feeling just 4 weeks ago. I was having severe brain fog and tried tryptophan to help with mood. Tryptophan had a padoxical reaction on me, and my brain went full force with suicidal ideation for 3 days until I realized it was the tryptophan. Kind of makes me realize maybe the suicidal type of Depression usually is some kind of messed up brain chemistry (brought on by life sometimes and maybe sometimes for no reason at all?).
Anyways, I don't think it is possible to have adrenal fatigue and to not have at least a light to moderate depression.
I started Lam's system 5-6 weeks ago, and finally started taking the supplements 3 weeks ago. I feel better than I have felt in 8 months today. So we will see how it goes, I have been told AF recovery isn't linear but since I am only 23 years old I may have it easier than some.