Seeing a sleep specialist and spending a night in a sleep clinic can be a trial. And you will likely get to do it again if you are dianosed with obstructive sleep apnea. The good news is that sleep apnea can be treated and you will feel so very much better when you get a good night's sleep and the benefit will be apparent after the first night that you sleep without the interruptions of apnea.
Any one who has symtoms like that should seek medical advice. Like many I was reluctant to do so, after much prodding I finally gave in and talked to my doctor about my sleep problems. It took some time to get through the specialist referral and the sleep clininc, but was well worth doing. The last two years since I was diagnosed and treated have been so much better than the preceding years when I was, in effect, half asleep much of the time.
Good luck."Take that, you hostile sons-of-bitches!" -- James Coburn, in the finale of _The_President's_Analyst_