There are a number of symptoms of postpartum thyroiditis that may appear during both the hyperthyroid and hypothyroid phases of the condition. These include:
Decreased milk volume in breastfeeding women
Hair loss
Fatigue
Goiter that is painless
Depression, anxiety, and moodiness
Symptoms during the hyperthyroid phase of postpartum thyroiditis are usually milder versions of general hyperthyroidism symptoms. These symptoms may include anxiety, muscle weakness, irritability, heart palpitations, fast heartbeat, tremor, weight loss, and diarrhea.
Likewise, the symptoms during the hypothyroid phase of postpartum thyroiditis are milder versions of general hypothyroidism symptoms. They may include sluggishness, dry skin, difficulty losing weight (or weight gain), constipation, low body temperature, and puffiness in the eyes, face, and hands.