I was diagnosed with mild to mod OSA by home sleep test. Been using CPAP for 2 wks and still tired. Also am mild hypothyroid (TSH 5.01). What to do?

Endocrinologist need. OSA and elevated TSH levels can coexist. Based on current literature evidence, it is difficult to say which comes first; the disruptive effects of OSA on the hormone system and then subsequently TSH elevations or perhaps vice versa. Make sure the CPAP mask is well fitting. It not, ask for another - there are many different designs. See an endocrinologist for a hormone evaluation, incl. thyroid.