Thyroid problems are one of the common causes for hair fall. As long as you are taking medication to maintain it , the hair fall should come under control in 2-3 months . There are many other contributory factors for hairloss like anemia,
vitamin deficiency, dandruff etc which may need specific medications
Next Steps
Ideal to do a basic blood work up to check for deficiencies. Use anti dandruff shampoo in case of any dandruff issues .
Health Tips
Consult a dermatologist for detailed history and appropriate treatment specific to your problem.