I need to know why sudden weight loss is not good when an individual experiences it. (diethealthclub.com)
• Weight loss: If you haven't put your pet on a diet, any sudden weight loss should be checked by a veterinarian. (mnvet.com)
Hyperthyroidism will increase your body's metabolism causing sudden weight loss, irregular or rapid heartbeat, sweating, nervousness or irritability. (healthtestexpress.com)