What are some symptoms of underactive thyroid?

Many: Some common symptoms are: fatigue, sensitive to cold, dry skin, constipation, hoarse voice, weight gain, high cholesterol, muscle ache/weakness, joint pain, heavy periods, brittle nails/hair, depression. Many other conditions can share these symptoms so if you suspect it, get a thyroid blood test.

Varies: Palpitations, tremors, muscle weakness, heat intolerence, weight loss, anxiety - or some people have few if any symptoms (so called "apathetic" hyperthyroidism).

Underactive Thyroid : Symptoms that commonly occur include: Tiredness , Weight gain, Constipation, Aches, Feeling cold, Dry skin , Lifeless hair , Fluid retention , Mental slowing and Depression .

Hypothyroid symptoms: Fatigue Weight gain Dry hair Brittle nails Depression Thermal or temperture intolerance See a doctor to get lab tests to diagnose it.