I have this as well. I have a very dry mouth when I sleep and I got bad heartburn. They gave me lansaprazole cos I'd been eating a pack of Ronnie everyday. A few months ago I had dry mouth and heart burn. Felt like there was something sharp in my throat. They increased the lansaprazole to 2 a day. 2 weeks ago I was at home and had this feeling which you all speak of. Feeling like you can't breathe. Can't get a full breath. I didn't know about any of this and thought I properly couldn't breathe. I live alone and went into a panic attacks like I never knew. I thought I was having a heart attack or some such. Got a cab to a n e and all my levels were normal. But I still felt like I had to consciously push out and pull in each breath. They told me about dyspnea and thay it can't be caused by stress. I have an ongoing war with my upstairs neighbours because of noise and it seems that that could have been the trigger. I was ready for taking unwise action that night with regards to my neighbours physical wellbeing then suddenly I think I'm going to die. It still happens now. I have propranolol foe anxiety and that does seem to let me forget about it and when I forget about it, it doesn't seem to happen. I've had this Web tab open since the weekend that happened and not dares read it cos it has made me feel it all I've again. I knew it would do and I'm hear, thinking I can't breathe, whilst knowing I am doing, but I'm glad I found this page/comment/post. I have a docs app tomorrow and a list to go through with him. This link between severe heartburn and dyspnea is definitely something I will discuss. It's all quite worrying. I'm 48 and gave up smoking and drinking a few years ago and then this happens. I want to run and cycle but I am scared to. Need to investigate further, and sedate when needed. I hope everyone is handling it all OK. ❤️