I had my TT June 2007 papillary 3cm well contained no sign of spread. Afraid of RAI and the effects and with the opinion of my surgeon that I was low risk etc did not do RAI. So there may be residual thy tissue. My endo has been playing with my meds and allowing me to initially to take ,25 cytomel and 100 synthyroid. My levels were fine last appointment but he wanted me off the T3 and tols me just to take synthroid . I went for blood work and got a call from my endo saying that the tests show my thyroid levels are three times what they should be that I have been on insufficent meds and that I have not been supressed. He told me that this could be a reoccurrence or the thyroid trying to regenerate due to not being suppressed . He said sorry to be the bearer of bad news and that he was referring me for RAI . Can anyone help me understand this ? Why or how would it change in two months ?