I've come back from drs gobsmacked. I showed Gp swollen hands and dry heels and was told 'of course we'll supply you with thyroxine.' She thought the dose I've been on ,150 mcg, was a big dose but has prescribed it and says I can have a full blood test including T3 in a months time. I am so pleased. let's hope everyone's GP becomes so open minded and listens to their patient.