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Summary List of Symptoms In general, the symptoms of hypothyroidism (underactive thyroid) are: Weight gain Puffy face Loss or thinning of eyebrows Cold intolerance Low sex drive Depression Abdominal bloating Cold hands or feet Dry or thinning hair Joint or muscle pain Thickening of the skin Thin, brittle fingernails Early Symptoms Many people attribute the early symptoms of hypothyroidism to stress or aging. They begin to feel chronically tired and overly sensitive to cold; muscle and joint aches often develop; modest weight gain is common even though appetite diminishes; constipation is often a problem. Premenopausal women may experience heavy periods. As your thyroid hormone levels fall over the following months, the skin becomes rough and dry, hair coarsens, and mental activity—including concentration and memory—may become slightly impaired. Depression can develop, and some experts believe that even mild thyroid failure can lead to major depression. |