Hello. I am becoming increasingly concerned with an ongoing issue I have. I am on prescription Omeprozole and have been for some time. It does a great job keeping heartburn and acid reflux away. However I have learned that I can't have dairy too close to going to bed. If I have ice cream or milk and lay down within an hour or two I wake up coughing and choking on acidic liquid. So I make sure I don't have dairy. Simple. However, the last couple of nights it's been happening anyways. I made sure I didn't drink any alcohol or eat too much before bed and it still happened. I try to remember to lay on my left side and that helps but I'd love to know what's causing this. I wake up feeling panicked almost like I'm drowning. I cough and cough to clear it out and it's nasty. Is this a sign of something serious?