Central Hypothroyid & Sleep Apnea

[Ali1101]

My thyroid tests typically show normal T3/T4 and suppressed TSH, my latest tests:

T3: 4.95 (2.63-5.69)

T4: 14.65 (9-19)

TSH*: 0.05 (0.27-4.2)

* Note: my TSH is typically at this level but I have seen it get to normal level ~1 when T4/T3 drop close to lower range.

I was also diagnosed with moderate sleep apnea. My sleep study reports show hypopneas events not apneas. Not clear though if they are central or obstructive. I tried CPAP many times in the past few years, different machines, masks, settings .. without benefit.

My question ... is hypothyroidism causing my sleep apnea? Or, vice versa, the stress resulting from sleep apnea is suppressing TSH and causing secondary hypothyroid?

[lovelab]

I'd be interested to know too as Dr sending me for sleep apnea tests ...