Sleepiness is definitely a mercury symptom.

Most standard thyroid tests either:

- Are so insensitive that many people will have serious symptoms and the test will still show normal, or

- Don't consider T3 at all (only T4)

Mercury interferes with T3 production, iodine utilization, and other chemical pathways that lead to sleepiness, low energy, brain fog, bad tempers, and numerous other symptoms.

My first girlfriend has no amalgams but worked in a dental office for 2 years preparing daily amalgam and now has a brain tumor and MS.

I suffered from over 17 physical symptoms and many emotional symptoms before realizing that mercury was the cause. Reading my story may help:

http://herballure.com/mms

Mercury in it's elemental form is not very toxic. It becomes very harmful when it methylates, which is does once in the body. Of course, vaccines contain mercury that is pre-methylated; That is, already in it's most destructive form. Mercury also offgasses continuously and can methylate once inhaled.

Here is a link to my mercury article base that may help you get some information you're searching for.

Mercury Talk