Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Graves' Disease ?
    ### Response:
    People with Graves disease may have common symptoms of hyperthyroidism such as
                
- nervousness or irritability  - fatigue or muscle weakness  - heat intolerance  - trouble sleeping  - hand tremors  - rapid and irregular heartbeat  - frequent bowel movements or diarrhea  - weight loss  - goiter, which is an enlarged thyroid that may cause the neck to look swollen and can interfere with normal breathing and swallowing

    