I think you definitely have mercury toxicity. Here is a link to a lady's blog that has had success chelating mercury and a link to what she suggests for a hair analysis. I suggest that you read all of the heavy metal related posts.
I have no experience with her hair analysis myself, but I have done the one from Analytical Research Labs and was very impressed by it.
Have you done a stool analysis for your chron's? The one that I just got includes a parasite section.
As far as adrenal fatigue goes, are you tired? Do you have heart palps? Anxiety? Trouble sleeping? Hypoglycemia? Excessive thirst?
You definitely have a few symptoms of low thyroid, which is generally indicative of low adrenal functioning, but not an absolute without at least some of the above mentioned criteria.