I have been on Cytomel for seven months.I had RAI three years ago.
Since then trying to get my levels straightened out. Doctor never
could so he placed me on Cytomel because he said some people
cannot covert T4 to T3. The panic and anxiety did subside
somewhat when my meds. where changed but they still seem to always
flare up. When I get myself really going I seem to forget it is
the disease and not me bringing it on. Thanks for your reply
and I know I will get through my bad times once again. 
vert T4