“I feel dizzy after thyronorm. Is it normal or will the dosage have to be altered?”

I am sorry for your discomfort, but this question is best reserved for the physician who prescribed you the medication. This is not an allergic issue and side effects of medications should and can be managed most appropriately by the physician who prescribed them.
Best of luck.

Sincerely,

Monika Korff, MD

I would not assume the thyroid medicine is responsible for your dizziness.
Get checked!!