Exactly! I've had anxiety for years. A few weeks ago, I got a headache and my main symptom was that it felt difficult to take a deep breath, like it wasn't going all the way through. It is hard to explain. Anyway, I tried some herbal stuff like phytocillin and bronchial syrup as well as things like mucinex, sudafed, etc. and my symptoms didn't really go away. I spoke with my doctor and he told me the only thing he felt going on with me was anxiety. He told me to meditate or just think about something to relax. I tried to use these apps (like one for healing/relaxing hypnosis and another with several healing sessions involving touch and meditation) and didn't see major results. And things got worse at night. It felt like my chest was tightening up and breathing became laborious, like it was not automatic anymore. I just couldn't control it. Perhaps I’ll go to a psychologist for help. Still, it’s really a comfort to know I’m not alone.