Thanks for writing in.
( decreased function of the thyroid gland) can lead to thinning of hair. However, in your case, a diagnosis of hypothyroidism can be made if you have other symptoms like weight gain, lethargy, decreased concentration, swelling in the feet or constipation
Further, chemical treatment of the hair can lead to hair loss but that would be variable. To get hypothyroidism ruled out, get a thyroid stimulating hormone
level done (TSH level
Also, a balanced and nutritious diet with plenty of protein and vitamin A
will help. #0-45 minutes of exercise in a day will also be required.
Hope this helps