levels are slightly high. suggesting there is less thyroid
hormone in your body that is why the doctor has asked you to take the thyronorm
. Your doctor is right in asking you to repeat the tests.
However havent you done the LH/FSH test in your blood? You should get that done too next time.
The tablets that you have been prescribed for your periods is correct though even if you just took Modus
for 7 days you will get your period after stopping the pill.
If your problem in menstrual cycle is because of thyroid issues then it will be regularised by taking thyroid treatment itself.
With the LH/FSH test we can find out if there is any other problem in your menstrual cycle. If LH/FSH test is abnormal then you may have to take the pills suggested by doctor to get periods regularly.
Another thing is that whenever you plan your pregnancy
in future these things have to reassessed and accordingly the medicines have to be changed wherever required.
Hope this helps