I thought I'd already responded to this, days ago...but apparently I'm nutz.
I would first of all advise making an appointment with your doc. This sounds like anxiety, but I'm not an MD and there are mulitple varieties of anxiety disorders. Not only that, but you'll want to have the doc do a quick check to make sure there isn't a physical reason fo these symptoms.
In the meantime, make sure you're taking areally good multi-vitamin with minerals, and load up on the B vitamins as well. They're good for nerve function and mood, including anxiety. Jen, my s-i-l, swears by fish oil capsules and so does JB (my husband). He has severe Social Anxiety Disorder and without the fish oil capsules, not even his Rx meds work properly, he says.
Aromatherapy is good too. I draw a nice hot bath with some "serenity" foaming oil in it, light a Serenity candle and put on the most relaxing music I own; then kick back with my cigs, ashtray, and maybe a small glass of something nice to drink

, and just let my mind unplug while my muscles un-knot. Lovely.
Good luck, hon;
Chyia, sympathetic