Thanks for the query.
Once you had thyroid abnormality, you have to undergo timely reevaluation of the hormonal
Because fluctuations can occur in the hormonal levels due to different causes.
So, once go for thyroid hormonal profile and prolactin
And also, ultrasound
may not detect early pelvic infection
So once go for physical examination including speculum examination.
This will help in detecting local causes like cervical erosion etc.
With this workup the possible cause for your problem can be identified and treated.
Better to check the thyroid levels in your children also.