Oh, how I can empathize! it's horrible when your head knows one thing but your body just runs off on its own.

I, too, have had anxiety problems and having a hard time dealing with stress.

I'm currently thrust into a position I never wanted but because we're so short staffed I'm the only one marginally trained in it to keep it going after the encumbent quit. I work about 200% more than I normally do with people coming from different directions asking/telling me to do this, do that, and do it yesterday. I can't even finish one thing before I'm distracted into doing something else. The desk looks like a bomb went off.

I get paid slightly more doing this, but honestly, it's just not worth all this stress. It affects other aspects of my life and just puts my anxiety into overdrive. I really want to go back to my lower-paid position where I go home without taking work home.

I would suggest a cognitive behavioural therapist to try to get your brain and body in sync. Good luck, and I know it's so much easier said than done, but don't sweat the small stuff, and even if it's big, THINGS ALWAYS WORK OUT (note to self: take heed what you tell others)