I have hypothyroidism for about the last 4 years thanks to Lithium. My question is that I have been on Synthroid 0.112mg (112MCG) tablets and have been doing well until recently. Had my TSH checked yesterday and the doctor's office called and said it was .32??? Said my doctor was going to call in 100mg instead. I thought when the number was low it meant hyper??? Am I this confused and wrong? Don't really understand all of this really! I just knew I had 3 main symptoms like back in '09-2010. Fatigue out of this world, hair starting to fall out again even though I take Biotin 1000 every day and waking up with the big swollen bags under my eyes. I'm scared the girl who called from my doctor's office got it backwards? Am I wrong..or right? Please help! Feel really crappy and sick. My cholesterol has when up suddenly even though I have been on meds. for many years. She changed it from 20mg of Zocor to Lipitor 40mg--- and now Lipitor 80mg and wants to test it again in 2 mths. and my TSH in 4 weeks! Thanks..in advance!