My doctor always believed I have a secondary hypothyroid as my TSH is suppressed to 0.1 or below with normal T4/T3. However, I skipped thyroid medication for a week and my T4 dropped to borderline and TSH increased above range:
FT4 10.7 (10-28)
TSH 4.85 (0.46-4.68)
My T4 medication is not elevating my symptoms and neither did T3 or desiccated thyroid meds. I get very tired and my tiredness is associated with cortisol rhythm (get worse during the morning hours) and lessen at night.
Whenever I sleep my heart rate gets low and wake up from adrenaline rushes, I found that with one day heart monitor. My cortisol is normal during the day but slightly low at night.
I'm so confused what is wrong! IS it pituitary not making enough TSH, is it sluggish thyroid or abnormality in adrenals and too much adrenaline inhabiting my pituitary and thyroid functions?
Any suggestions are welcome!