The symptoms of Hashimoto's Thyroiditis are frequently ambiguous and might be mistaken for those of other diseases. Symptoms can differ from one individual to the next, so you may not have all of the same symptoms as another thyroid patient. This is a list of many, but certainly not all, Hashimoto's Thyroiditis symptoms. If you experience several of these symptoms, you should request a blood test to evaluate your TSH level and Thyroid antibodies from your doctor. Hashimoto's Thyroiditis Symptoms include:Experiencing weariness, tiredness, sluggishness, or weakness, Body movements that are slow, Problems with memory and forgetfulness, Concentration problems Depression, Finding the correct words or speaking effectively is difficult, Inability to handle Cold temperatures, Muscle deterioration, Muscle spasms and discomfort, Joint discomfort, Skin that is cold, Skin that is parched, The skin has a yellowish tint to it, Puffiness in the face, especially around the eyes, Hair that is coarse and thinning, Nails that are brittle, Constipation, Menstrual cycles that be heavy or irregular, A goiter is an enlargement of the thyroid gland (enlarged thyroid gland), Voice that is hoarse, Gaining a little weight (10 lbs0,Arms, legs, hands, and feet swell. Your thyroid becomes destroyed as a result of Hashimoto's disease. Hypothyroidism is the most common symptom of Hashimoto's disease. Thyroid damage can sometimes cause too much thyroid hormone to be released into your bloodstream early in the course of the disease, resulting in hyperthyroidism symptoms.Your thyroid gland may enlarge, resulting in a Swelling front of the neck. A goiter, or enlarged thyroid, can cause a feeling of fullness in your throat, but it is usually not unpleasant. Damage to the thyroid gland over time, even decades, may cause the gland to shrink and the goiter to subside.