I have an emerging issue that when I lie down it starts to feel like I am constricted for air, like an obstruction. I can do it but its uncomfortable and gets worse when I start to fall asleep, I will gasp for air and wake up or twitch.......I have put on weight this year and have cervical stenosis so dont know if that ties in, havent had history of asthma nor horrible allergies, but have cfs/fm and probably auto immune issues. Its messing up my sleep because can only sleep a few hours if lucky in the last week because of it, took benadryl one night to sort of knock self out and worked sort of but I was told that may not be wise because if am having apnea or some obstruction not nec. good idea to take a sedative. One medical person I spoke with said should get heart checked and would need to take home some sort of oxygen monitor. I am thinking it could be a heart or lung/respiratory thing, someone else suggesed GERD but i have had that a long time and never had this before. anyone have experiences like this and can share what you found out or did about it?