Thanks for the query. Stress
and strain can alter the hormonal
And can lead to menstrual irregularities.
While using pills also, menstrual irregularity can be seen.
Now you should not stop the pills, as if you stop the pills in the middle of the month, the purpose of using the pills will not fulfill.
Instead with your doctor's advice, you can go for antifibrinolytic drugs or additional dose of hormones.
And continue the pills as usual.
Once the bleeding decreases you can stop the additional tablets.
Recheck for your thyroid
profile once and make necessary alterations in the dose if needed.