Which of the following is NOT a symptom of hyperthyroidism?

• A. Fatigue
• B. Weight loss
• C. Increased sweating
• D. Rapid heartbeat

Answer: (A)

The main idea here is recognizing which symptoms come from excess thyroid hormone. When thyroid hormone levels are high, metabolism speeds up and the body becomes more responsive to sympathetic signals. That leads to weight loss despite normal or increased appetite, sweating and heat intolerance, and a rapid heart rate or palpitations due to increased cardiac activity.

Fatigue, while it can occur in some people with hyperthyroidism, is not a hallmark feature and is more commonly seen with hypothyroidism or in the aftermath of long-standing hypermetabolism. So the symptom that doesn’t fit the typical hyperthyroid pattern is fatigue.