- Thyroid storm: It is a sudden, extreme over activity of the thyroid gland. It is a life threatening emergency necessitating prompt treatment. It may be precipitated by infection, injury, surgery, poorly controlled diabetes, fear, pregnancy/labor, discontinuance of thyroid medication, or other stresses. Mortality (death) rate is 50-75%. Notable features include:
- high fever
- tachycardia (rapid heart rate)
- mood swings
- altered consciousness (even coma)
- other symptoms may include vomiting, diarrhea, enlarged liver with mild jaundice
In old people symptoms may not be so marked (masked or apathetic hyperthyroidism). They may simply complain of weakness and sleepiness. They appear to be confused and depressed. However heart problems like abnormal heart rhythm are common in older people and they may suffer from heart failure or angina (pain in the chest).