I am hypo thyroid (lower than normal levels) and was falling asleep at my desk at 9am after 10 hours sleep the night before. My skin drys out a lot, if I get too low, I get a tremble in my hands.
Good luck.
Buz
Here are 2 sites for info.
http://www.thyroid-info.com
http://thyroid.about.com .
from the first link-
I HAVE THE FOLLOWING SYMPTOMS OF HYPOTHYROIDISM
___ I am gaining weight inappropriately or unable to lose weight
___ My "normal" body temperature is low, and/or I frequently feel cold
___ I feel fatigued, exhausted more than normal
___ I have a slow pulse, and/or low blood pressure
___ I have high cholesterol
___ My hair is rough, coarse dry, breaking, brittle, or falling out
___ My skin is rough, coarse, dry, scaly, itchy and thick
___ My nails have been dry, brittle, and break more easily
___ My voice has become hoarse, husky or gravelly
___ I have pains, aches, stiffness, tingling in joints, muscles, hands and/or feet
___ I have carpal tunnel syndrome, arm or leg tendonitis, or plantar's fascitis
___ I am having irregular menstrual cycles (longer, or heavier, or more frequent)
___ I am experiencing infertility, or have had one or more miscarriage
___ I feel depressed, restless, moody, sad
___ I have difficulty concentrating or remembering things
___ I have no or low sex drive
___ My eyes feel gritty, dry, light-sensitive
___ My neck or throat feels full, pressure, choking, lumpy, larger than usual, and/or I have difficulty swallowing
___ I have/may have sleep apnea
___ I have puffiness and swelling around the eyes, eyelids, face, feet, hands and feet