Hey, I also have this 24/7 feeling that I need to take a deep chest breath, but for me it’s been going on close to 8 years. And just like you, I contacted Simon, the man who wrote the article on the Alexander technique, and I am considering going to North Carolina to see his wife! This is horrible what we have to go through. I’m not ruling out physical causes yet, but I have this deep feeling that my body just forgot how to breathe properly because of really bad anxiety, and it’s just stuck like this - a never ending cycle impossible to get out of. I hope you see this message and let me know if you ever saw someone about the Alexander technique and if it helped you. It just seems so impossible to keep myself from taking that unnatural deep breath, it’s so deeply ingrained in me. Please get back to me thank you