I'VE BEEN ON MEDICATIONS FOR 57 YEARS FOR HYPOTHYROIDISM. FOR

I'VE BEEN ON MEDICATIONS FOR 57 YEARS FOR HYPOTHYROIDISM. FOR OVER A YEAR MY DOSAGE HAS
BEEN CHANGED EVERY FEW MONTHS. THE DR. IS LOWERING THE DOSAGE OF THE MEDICATION EVEN
THOUGH I'M HAVING MORE SYMPTONS SUCH AS BEING TIRED, IRRITABLE, INTERNAL THERMOSTAT IRREGULARITY. SHOULD'T THE DOSAGE BE INCREASED INSTEAD?
ALSO, I'M TAKING NATURAL ARMOUR THYROID INSTEAD OF A SYNTHETIC. IS THAT WISE?