Diarrhea
This condition speeds up bodily systems, including digestion. You may notice more frequent bowel movements or diarrhea. Furthermore, sympathetic hyperstimulation in the gut leads to increased motility leading to diarrhea. Frequent bowel passage may occur in some of the patients suffering from this disease.
Muscle weakness
This condition has a profound effect on skeletal muscles and often leads to myopathy, with muscular weakness being the most common sign.
Tremor
For people suffering from this disease, the metabolic balance of the body is not regulated, resulting in increased energy production by every cell in the body. As a result, the nervous stimuli become excessive, resulting in hand tremors.
Reference:
[1] https://www.medicinenet.com/hyperthyroidism/article.htm
[2] https://www.healthline.com/health/hyperthyroidism
[3] https://www.nhs.uk/conditions/overactive-thyroid-hyperthyroidism/symptoms/
[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2882550/
[5]https://www.btf-thyroid.org/hair-loss-and-thyroid-disorders#:~:text=Severe%20and%20prolonged%20hypothyroidism%20and,months%20and%20may%20be%20incomplete