Does Thyroid Cause Hair Fall?

thanks for asking few questions *When was first noticed? *Has it increased in size since then? Any recent increase in size? *Do you have any breathing difficulty/ swallowing difficulty or any voice change? *Any history of weight loss/palpitations/ tremors/diarrhea? *Any associated weight gain/ hairloss/ tiredness/ constipation? *Any history of recurrent fever / thyroid pain/ eye pain / bulging eye ball/ tiredness? *Periods- is it regular? *How is your quality of life? *Any family history of thyroid disease/ goiter or thyroid malignancy? *Are you diabetic/ hypertensive? *Do you have raised cholesterol? do anti TPO antibodies if positive it might mean that you have an autoimmune process going on . so hair fall as a part of autoimmune process can occur even if your TSH and Free T4 are normal. your t4 ishigh because of either 2 reasons 1. u did the test after taking medication immediately 2.or your dose is high