Hi all, just wanted to see if anyone else is experiencing weight gain on T4. I had graves and the the old thyroid whipped out in 2010. 200mcg of T4 only with but D and B12 daily. I eat well and hit the gym. Yet it still piles on. When I have been disorganised and forgot to get a new prescription and missed doses.....I have lost weight. This leads me to think that T4 is not 100% effective for me and perhaps I am not converting to T3 so readily. Any similar experiences out there? Any advice? Can we get T3 in the UK?