It really seems to be with me like this... I get all the tingles, big pupils, racing heart and so on with too much stress but it is an anxiety attack, when they hit the point of I am "dying" and cannot get it through my head I am fine I chalk it up as a good panic attack. Though from what I read they are used interchangably. I live almost in a constant state of a regular easy going anxiety that no longer bothers me.

Too much stress which is day to day brings on all sorts of headaches and muscle pains and spasms (I have since learned a muscle spasm in your back can bring you to your knees!)

Old pains pop up after I trigger or do so without knowing I did. I learned this by doing it on purpose. I have bad kidney pains, it is a form of flash back as my kidneys are fine and it took a lot of thinking and searching my head and writing to figure it out, I can also feel other body pains that happened during different attacks. All of the spots I feel it are healed with no damage so again a flash back of sorts.

I have one sensation where I can actually feel things against my hands and it is very annoying. It stems from an attack and me pushing someone and I could swear if I closed my eyes I would be thrown right back.

Now old injuries that left a more permenant ache always flare up and I can't say I have honestly linked it to my anxiety. I think I have to much stress and cold weather going I would not be able to say one was effecting the other!

Sorry if that made no sense but is more how my body reacts. Anxiety can do just about any and every thing to it though.