Hello. I get "spells" where I will break into a sweat, feel "foggy" headed/lightheaded and my body trembles/shakes. Also, I am always very sore in the back of my neck and down into the upper/mid back area. I will add that I always have a slight tremor in my body and, for instance, my hands/legs are always shaky and if I am laying on the floor and rest on my arm, my arm shakes. My GP is treating me for anxiety, but these physical symptoms make me believe something more may be going on.