Hi Di!

I'm a hypothyroid, too. I'm hypo due to radioactive iodine given to kill a weird adenoma. One way I monitor myself is to check my pulse. If it gets under 60, or over 80, for a resting heart rate (I'm in average shape) I know it's time to have my levels checked.

If you "feel" hypothyroid, and your TSH levels are OK, make sure the doctor does a free T4 AND a T3 uptake. Synthroid is synthetic T4. If it's not getting converted into T3, you can still feel hypo. It's pretty rare, but it does happen.

A good resource is "Thyroid for Dummies". I hate the "for Dummies" title, since I am NOT dumb, but it is a pretty good book!

With a good partnership with your doctor, (I "broke up with" my endocrinologist because she was a witch and now just see my family doctor) hypothyroidism is pretty darn easy to control.