You’ve been feeling fatigued and have gained some weight. It could be just a sign that you’re getting older, but there might be a chance these general symptoms are caused by hypothyroidism. Dr. Victor Bernet, a Mayo Clinic endocrinologist, says a blood test can confirm the condition, also called underactive thyroid. Watch: The Mayo Clinic Minute https://youtu.be/yS2OhBk-LbM Journalists: Broadcast-quality video pkg (1:03) is in the downloads at the end of the post. Please courtesy: “Mayo…