I have been doing a little research after test results showed low T3, low end but within range TSH, and near high but within range T4. It was suggested that I take Cytomil in addition to the Synthroid that I have been taking for 8 years now. My question is after researching the internet, and reading a lot of good press for Armour Thyroid, should I ask my doctor to put me on Armour Thyroid or just add a prescription for Cytomel to bring my T3 levels back within range. Out of curiosity, I've decided to look at all the previous tests that I have accumulated over the past 19 years, and discovered that in all those years I had not been tested for T3 levels until just recently. Go figure. Any feedback is greatly appreciated.