Answer :
Answer:
Richard's symptoms—insomnia, weight loss, anxiety, and a racing heart (likely palpitations)—may suggest an underlying medical condition.
Explanation:1. Hyperthyroidism
Explanation: Overactive thyroid function increases metabolism, causing weight loss, anxiety, insomnia, and tachycardia (racing heart).
Tests: Thyroid function tests (TSH, Free T4, Free T3).