I know some might think this is off topic, but it actually isn't. So bear with me please.
I recently had a gastroscopy and colonoscopy after a dear friend of mine was diagnosed with oesophageal cancer, from which he is dying. At the time I thought it might be a bit of overkill, as I only occasionally have reflux, but he insisted I get it checked out, and in the end I was glad I did as it turned out I too have GERD (Gastroesophageal Reflux Disease), the disease that started it all for him.
Why am I sharing this on a sleep apnea site? Because research tells us that 75-80% of people with sleep apnea also have GERD. They don't know exactly why, but the correlation definitely exists. So if you or someone you love has sleep apnea and reflux, please get them checked out asap as this type of cancer is a death sentence.
Thanks for bearing with me!