Symptoms That Could Indicate Hyperthyroidism

Feeling off but can’t put your finger on why? Your thyroid might be the silent driver behind the chaos. When this small but mighty gland goes into overdrive—a condition known as hyperthyroidism—your body speeds up in ways that can be both subtle and severe. From racing thoughts and weight loss to shaky hands and unexpected mood swings, the signs often mimic stress, burnout, or aging. Graves’ disease is the most common trigger, but there are other culprits too, and the symptoms rarely show up in a neat checklist. That’s why we’ve expanded our list to 28 signs that could point to hyperthyroidism—a comprehensive guide to the physical, emotional, and even cosmetic signals your body may be sending. Whether you’ve been feeling wired, restless, or just “not yourself,” these clues could be the missing piece. Because when your thyroid whispers, it pays to listen before it starts to shout.

1. Shifts In Appetite

Hyperthyroidism may cause either an increase or decrease in appetite or a complete change in the type of food a person craves. The majority of patients with hyperthyroidism will experience an increase in appetite, but any unprovoked change in taste might be a sign. Weight changes and an increase in thirst are also common symptoms of hyperthyroidism. Some individuals may gain weight and others will lose it. Keeping a daily food journal is a great way to track any appetite changes. Be sure to note any food cravings, what you ate, when you ate it, and how you felt afterward.

2. Mood Swings

Experiencing a rapid change in hormone levels can be unsettling. Abnormal thyroid hormone levels may cause changes in mood or behavior such as mood swings, nervousness, hyperactivity, irritability, or panic attacks. Medications are available to assist with mood changes; however, it should be noted that many medicines come with physiological side effects similar to the symptoms of the disease itself. For example, steroids can cause depression, anxiety, and mood swings. Work with your doctor to find a treatment option that includes diet, exercise, and medication if needed.