Symptoms are more severe than typical hyperthyroidism and can include:
High fever (often > 104°F or 40°C) Tachycardia, which can lead to cardiac arrhythmias Profuse sweating and heat intolerance Altered mental status such as agitation, delirium, or coma Gastrointestinal symptoms like nausea, vomiting, and diarrhea
These symptoms are due to the body's response to excessive thyroid hormones, which increase metabolic activity and oxygen demand.
