I have many symptoms of hyperthyroidism and lately have been very crabby with suicidal thought. the last time i was checked my level was 1.73, but i sweat like crazy even when it's cold (seems to be mostly in the morning about 1/2 way thru a cup of coffee, and esp. if I didn't eat a TON of food late the night before) I have never been more than 120lbs....excluding pregnancy. I have almost fainted during stressful situations (like driving through a foot of snow). My resting HR is 120. But my levels are considered normal. Any ideas?