A couple of nights ago I woke up in the middle of the night coughing and chocking - I had had a late snack, I drank a cup of Keefer, then went to bed.. when I woke up, choking, I couldn t breath, since some of the liquid was coming out from my nose. It took a while, and the next morning I was still coughing. Should I be concerned with any of this food/particles travelling to my lungs?? I ve had stomach problems for a long time and take omeprazole.