Hi everyone, this is my first post just wanting to get some information and views off people. I have had an underactive thyroid since I was 15/16 and over the years it has been getting worse! I have recently had thyroiditis and neck swelling and I'm taking 200mcg levo. I feel like I'm always more cold, tired, achey and my weight gain continues despite dieting. I feel so miserable and the drs never seem to help. Does anyone have any tips?