Feeling more anxious than usual? Or maybe your body is run down and overly fatigued? Notice peculiar weigh loss or weight gain? Is your hair falling out, beyond the normal, and your heart racing? Are you dealing with brain fog? Maybe it’s extreme stress; but, maybe, it’s your thyroid. Read on to learn more about this minuscule yet important internal organ and its functions, an overview of an overactive and an underactive thyroid, and a list of some of the more common thyroid symptoms associated with these.