I'm sure anxiety can be the root of all of those things you mentioned - they always were at the root of mine....the shortness of breath, racing thoughts, headaches, etc., etc. Have you been tested for your headaches....could also be connected with sinuses, as is mine. But there are so many ways anxiety can manifest itself that it would take ten pages to list all of them (and I think I've had most of them at one time or another). Are you on any anxiety medication? I'm not at present and would certainly love to be taking something like Xanax, that previously helped me more than any other anti-depressant, etc. but doc's don't want to prescribe it because of the addiction factor. I took it years ago for over two years, however, then went off it with no withdrawal. Anyway, there might be something the doc could prescribe that would be right for you. Good luck!