4 doctors weighed in:

What are the most common symptoms of hyperthyroidism?

4 doctors weighed in
Dr. Peter Kurzweil
Internal Medicine
2 doctors agree

In brief: Multiple organs...

The thyroid hormones secreted by the gland affects almost every system, including basal metabolism, skin, heart, brain, bowel.
The thyroid gland is controlled by a part of the pituitary/hypothalamus gland in the brain in a feedback mechanism (as with all glands). Increased thyroid hormone can be associated with 'poppy' eyes, racy pulse, moist skin, perspiring, diarrhea. See prior answer.

In brief: Multiple organs...

The thyroid hormones secreted by the gland affects almost every system, including basal metabolism, skin, heart, brain, bowel.
The thyroid gland is controlled by a part of the pituitary/hypothalamus gland in the brain in a feedback mechanism (as with all glands). Increased thyroid hormone can be associated with 'poppy' eyes, racy pulse, moist skin, perspiring, diarrhea. See prior answer.
Dr. Peter Kurzweil
Dr. Peter Kurzweil
Thank
Dr. Marybeth Lambe
Travel Medicine

In brief: Most common

The most common symptoms are fatigue, difficulty sleeping, irritability or nervousness, increased sensitivity to heat, & sometimes fast or irregular heart rhythm. Other symptoms may include hand tremors, muscle weakness, shortness of breath, increased appetite, hair loss, diarrhea, & change in vision or eyes.

In brief: Most common

The most common symptoms are fatigue, difficulty sleeping, irritability or nervousness, increased sensitivity to heat, & sometimes fast or irregular heart rhythm. Other symptoms may include hand tremors, muscle weakness, shortness of breath, increased appetite, hair loss, diarrhea, & change in vision or eyes.
Dr. Marybeth Lambe
Dr. Marybeth Lambe
Thank
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