Symptoms included such things as mental sluggishness, loss of concentration, poor memory, irritability, lack of confidence, excessive worry, hypochondria, depression, obsession, suicidal tendencies, and senility.
Sluggishness may also be noted if a child's veins and arteries are consistently filled with higher than normal amounts of fatty substances that are not being metabolized by the body.
Symptoms of this rare, but potentially deadly, complication include enlarged tongue, swollen facial features, hoarseness, and physical and mental sluggishness.
Myxedema-Severe hypothyroidism, characterized by swelling of the face, hands, and feet, an enlarged tongue, horseness, and physical and mental sluggishness.
Labored breathing or general feelings of sluggishness and lack of energy may warrant examination by a physician and testing of cholesterol.