Hi Simela,
That's what happened with me, I didn't believe I was getting the results like I believed I should have been getting, so I checked into the possibility of adrenal fatigue and it seemed as that was my problem.
From my reading I believed that there wasn't any really reliable testing available for the adrenals, but someone else here (already forgot who though) posted that there is. Anyway, I went to my acu doc & asked her to 'look into it' - they do any of the kinds of testing we are used to from Western Medicine.
She told me that my adrenals were in really poor shape & had me start on the Homeo treatment. I wouldn't suggest taking it to "see if it helps", have a qualified practitioner help you to determine if you need it. On the other hand, if you are in a position similar to what I am in - where I have to do a lot of reading on trusted sites because it's up to you to tell your doc what you suspect is going on just so that you can get "it" tested and/or get medicine for it - then do you reading carefully.
It is a good medicine for me and it has helped me quite a bit, but I still have a very long way to go as well.
Here is one of the links I used to determine that my adrenal function was too low to not get treatment;
thyroid.about.com/cs/endocrinology/a/adrenalfatigue.htm