I have a toxic nodule which is causing me to be hyperthyroid. I was given 10mg Carbimazole. I had bloods taken a fortnight at the Endocrinologist. My GP then phoned me the next day to say to half my dose of Carbimazole to 5mg. I've been really anxious and twittery for the past few days. Am thinking of taking my dose back to 10mg. Can anybody give me their opinion?