I have had constant lightheadedness, general weakness ,am fatigued, have a pounding heart at times, short of breath, vision prblms, and uncontroled movements. This has benn happening for several years and is getting worse. I have had CATS,blood test,UA-s, and numerous other test. They have come up with nothing. I hope there is SOMEONE who can help. I am at wits end without any possible answers. Tell me something somehow.............................................