It's case of Hypothyroidism, you need urgent treatment in order to prevent other complications. Also check your
Vitamin D,
Vitamin B12 level.
Next Steps
You can take deep acting, safe, effective and curative Homeopathic Medicines along with required Thyroxine suppliment for permanent cure.
Health Tips
Take nutritious diet and exercise regularly. Avoid extreme hot in winter and chilled in summers. Try your best to follow nature, nature is the greatest healer.