OSA can be suggested by history and physical.
Excess snoring/daytime sleepiness
/apneic episodes/ aM headaches. And the Exam obesity
/small oral airway/collar size>18. The definitive test is a PSG with split night/CPAP titration. I would request copy of sleep study
and get a second opinion
if you are not satisfied with the options. You are young CPAP can be difficult to tolerate. ENT FOR UPP EVAL.