Hi I Have Graves Disease For A Year. I Have

Hi I have graves disease for a year. I have been on carbimazole 20mg for one year. My TR levels have gonea from, 40-to 19 now. I am depressed and have gained 1.5 stones and still getting fatter. My thyroid doctor Refuses to let me stop taking or even cut down the carbimazole levels. I have mouth ulcers also. The doctors still says no. He says keep taking carbimazole. I am female aged 41.