Does anyone take more Levothyroxine than they should to try to feel better? After hitting a brick wall again at the endo clinic yesterday I am now getting desperate! Since having radioactive iodine treatment I have felt ill and just want to try to feel better again. I have done lots of research which actually has been quite depressing but determined not to give up and sleep the rest of my life away. The person I saw yesterday didn't even know what I was talking about. I am also thinking about buying on line T 3 to try. Any thoughts or help on this would be appreciated .