Even without lab tests, Dr. Doyle, you suspected my problem was thyroid deficiency—and you were right. With complaints of lightheadedness [due to a significantly decreased heart rate,] which surely would have required a pacemaker, you questioned me like a “medical Sherlock Holmes,”. You did a very careful physical exam and ran some lab tests to confirm your intuitive clinical diagnosis. Shortly after starting thyroid hormone, my heart rate increased, avoiding the need for a pacemaker. Personable and proficient, you recognized the important role nutrition and natural therapies would play in effectively treating me.