Original
Yes staying active is best but since many people with Thyroid issues also have issues with their Adrenal glands (think fight or flight response) you don't want to do things that are stessful to the body until you make sure your Adrenals are healthy. Walking, swimming, light weight lifting are advised esp in the beginning. Since severe fatigue is often a common complaint esp when you are first diagnosed any exercise you can do is better than nothing!