Hashimoto’s Disease: When Your Immune System Slows You Down

4. Additional Symptoms

As Hashimoto’s disease progresses, more symptoms may appear as the thyroid continues to slow down. People may experience constipation, pale or dry skin, cold hands and feet, or a hoarse voice. Some notice changes in their face, like puffiness, or develop thinning hair and eyebrows. Mood shifts such as depression are also common, along with trouble concentrating or remembering things—often described as “brain fog.” The condition can cause menstrual irregularities and heavy periods, especially in younger women, and in some cases, it may affect fertility. Slowed heart rate and lower body muscle weakness can also develop over time. These symptoms often creep in gradually and may be mistaken for stress, aging, or other health issues.

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