Thanks for using healthcare Magic.
In my view your thyronorm
was changed too fast without proper monitoring. It is better to get thyroid
status before increasing/decreasing dose of thyroxin.
Having said this, till date no major damage done to your body.Yor thyroxin requirement probably falls in the range of 50-100 microgram of thyroxin and I hope you are doing fine with 100 thyroxin.
When you present after three months get your new lab report of thyroxin and your physician will adjust your dose as per the requirement and response. You need not do anything actively other than taking your pill as adviced. Rest leave on your doctor.