I had my thyroid removed in a tt in 2002. now the doctors say my level is normal without medications. should cancer be a concern?

Thyroid: If youre thyroid was removed in 2002 I would assume you were in some sort of thyroid replacement therapy. (Levothyroxine etc). If your level are normal without medication, the only explanation I could have is that there was some remaining thyroid tissue which is now taking care of your levels. There is no other explanation that I could think of. I would not necesarrily think it is malignant though