My mother is 89 and had a goitre removed probably about 30 years ago as it was pressing on her windpipe. After that op she was put on Thyroxine for many years and about 6 years ago she was told to stop taking it as it wasn't needed any more. Her annual blood test has just been done and I was told today her TSH is 0.01. We are due to see the nurse next week to discuss.
Does anyone know what might be happening here, please?