i recently stopped taking EFFEXOR XR, and am having severe, flu-like symptoms, and "brain shocks". i am dizzy, and hearing weird noises, especially when i move my head. i have been reading up on this, and find these symptoms are quite common. does anybody know exactly what is the cause in the brain of the "shock" sensations? and are there any long-term effects of taking this drug? what can be taken to help alleviate the symptoms? i am having a hard time functioning......