You are such a lucky boy! My Tucker (16) had hyperthyroidism and took pills until he became allergic to them. So 1-1/2 years ago we had the radiation treatment. He's gained his weight back and his catitude! It is like he is a new cat again. I am so glad I did the treatment now his TH levels are completely normal. All the best Mr Biggles, many happy years with your person!