I too have had all the various workups for my health and am otherwise fine.
I took xanax, and the first
pill worked fine then after that they didn't work anymore
Now i've started prozac and I feel even worse, everytime I stand up I get the feeling im going to black out. Hopefully this will go away soon.
I feel like my life is over, like I will never have it back and I am just destined to lie in a bed all the time worried about everything and be dizzy.