What does underactive thyroid mean?
If you have fatigue, weight gain, low motivation and ambition, heat and/or cold intolerance, headaches and migraines, dry skin and hair, irritability, anxiety and panic attacks, hair loss, fluid retention, depression, decreased memory and concentration, unhealthy nails, brittle nails, constipation, irritable bowel syndrome, low sex drive, insomnia, hives, asthma, allergies, slow healing, acne, or carpal tunnel syndrome, you may have a thyroid disorder.