It’s worth getting checked out. I ended up going the dental appliance route because CPAP machines feel like a torture device to me. Anecdotally it’s made a noticeable difference. Haven’t had a nap in ages.
[0]: https://somnomed.com/en/dentists/somnodent/somnodent-air/
I spent 2 extra years barely half awake because I thought that, being thin, I could not have sleep apnea. Nor did I wake up gasping.
The 4 main risk factors are overweight, being male, over 40, and current or past smoker. But some get it while being 0/4.
Sleep apnea is one of the best serious medical conditions you can have, since the CPAP machine fixes it completely, with very minor discomfort!
Then a week of CPAP machine for free to feel if it's helping (I feel no improvement, although wife said there was no snoring with the machine).
My 5 days a week, btw, is not 5 days of very long workouts. This is a tangent but I used to do 3 days of 1.5+ hour workouts including heavy weight training (squats), and HIIT or other conditioning. All functional movements, no bodybuilding or anything. Now, I do 5 days a week of short 25-35m workouts. My body composition is way better and I feel less pain overall.
I've had fitful sleep as far as I can remember. I wake up (and remember it) probably 4-5 times a night and I've been told I toss and turn all the time. I find if I take a calmant or a substance I can sleep through the night.
I have chronic inflammation includes Achilles' pain just as you describe. I'm in my lower 40's. I'm also a weightlifter and I do calisthenics - both of these activities 4-5 times a week. Oh, but I sit in front of a PC 12+ hours a day!