I agree with gimel. Before thyroid medication for hypothyroidism I was exhausted and dizzy a lot.
When the exhaustion and dizziness continued after treatment my doctor looked for other reasons.
Thyroid troubles manifest all sorts of medical issues. One being sleep apnea; central and obstructive. That will also contribute to dizzy and tired.
Another being low on all sorts of vitamins; B12, magnesium, iron, etc. Which will cause it's on symptoms too! I mean low as in low in the blood test range but often a doctor doesn't mention it because it is within their lab range.
I have been trying to get my thyroid levels balanced for 3 years since a TT. My levels recently came back with high FT3 /FT4 and TSH of .02. I was feeling really tired and thought I was low. I have a difficult time correlating my symptoms. I fell just as fatigued and dizzy when I'm hyper as when I'm hypo. Neither are good.
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