Do thyroid disorders cause daily headaches and dizziness?

Not likely: But possible. Why do you ask? Thyroid disorders, generally hypothyroidism at age 68, can cause fatigue, lethargy, weight gain and a feeling of being cold when most are warm. Headache and dizziness would be down the list a ways, but can sometimes be sort of vague symptoms of a bigger problem. If the whole story fits, discuss with your primary care doctor. Simple blood tests will generally tell.

Typically not!: Typically thyroid disorders do not cause headaches but they have been reported. The risk is higher if your levels aren't optimum. Consult your pcp as they might have to re-evaluate.