has anyone else had their doctor have to consistently up their dosage of synthroid about every 3 months. for about the last 9 months I go to the doctor and my dosage gets increased. The increase seems to make me feel better for about 2 months. About 3 weeks before I'm due to go back to the doctor I can tell that my levels are low again and sure enough when I go back they are low and I have to have another increase. I'm not sure if I need to take another route like trying Armour or not? Anyone else had this issue and tried something else that worked? I'm getting a little frustrated that nothing is working longer than 2 months!