hi all sorry to keep moaning the last few days ive had a new symptom. its like a burning feeling in my back coming from somewhere interna..l it is about half way down my backfeels like it going into my throat also the pain can be really bad and im worried there something wrong with my lungs also im having difficulty in swallowing and loads of twitching muscles.... im terified some food may ave gone into my lungs....does anyone else get this