Sorry, I spaced out while I was typing and sent without finishing. Yes, I did have my neck measured and was sent for a sleep study as a result. I'm really grateful, because even if you don't realize it, you can be endangering your life with untreated obstructive sleep apnea. And there is a strong correlation between OSA and obesity.
I got the printout from the EEG etc. when I tested. At one point, I stopped breathing for a minute and 20 seconds. I couldn't do that consciously if I tried. Snoring and gasping awake are things we don't always recognize unless we sleep with a partner who complains.
Be grateful you have such a caring doctor who trusts empirical testing more than his/her ability to diagnose. You're lucky.