What medication are you on, how long have you been on it, and is there any connection between the timing of going on it and these symptoms? Also, most of what you describe could be vascular in nature; migraines are vascular headaches, caused by the constriction of blood vessels followed by their expansion. There are ways of easing this, including biofeedback and natural remedies, but generally, migraines often follow upon the easing of a period of high stress. Might be a route of investigation, if you haven't already done so. Good luck.
perhaps someone else here may have better insight than myself. hopefully anyone who's experienced your symptoms will respond to your post and explain their own experiences. i'm sure that would be far more helpful than anything i said.
well i truly hate to say this, but i think you do have reason to be concerned. the reason i hate to say that to you is that it could very well be just anxiety and i know that if it's only anxiety, the fact that someone tells you that you might have reason to worry will indeed make you worry even more. i'm sorry for that. but i do think it's worth having all the test done. anxiety can really do some very disturbing things to our bodies and make us feel extremely uncomfortable...but the symptoms you describe aren't like the ones you normally see. it's certainly possible...but i would want to really have it checked out based on what you've said here. i really hope that doesn't worry you. after all...i'm no doctor by any means. i'm just a regular person...but i do know that it would concern me.
one thing to keep in mind is that if all your vitals are fine, then that's a very good sign. that probably exculdes a few things. having said all that, if it turns out it is simply anxiety...then the best thing to do is let it happen. let it become part of you. accept it and let it happen. don't be affraid of it anymore. doing this is the only way to reduce the panic level that is causing it to continue. even by doing this...it may still take days or weeks to feel 'normal' again...but thats the only thing that helps with the physical symptoms as far as i know. share all your concerns and details with your doctor(s) because they're the ones who can really tell you if it's anxiety or not. best of luck to you with this.