How long were you taking the Cymbalta? The doctor should have probably weened you off of the Cymbalta before switching to the Zoloft, or lowered one does while increasing the other at the same time. 200mg seems to be a big jump.
Chances are, though, that quitting the Zoloft/Cymbalta suddenly is causing most of your symptoms. You should always ween yourself of of any AD/Anxiety medication and never stop them cold-turkey.
It sounds like withdrawel, when you take meds like these and you want to stop them, a lot of times your supose to wein off them gradually lowering your dose and then stop taking them, this helps to avoid withdrawel or at least a bad one.
Before you discontinued it, did you consult your doctor first?
It might take a few days possibly a week or so but still consult your doctor about it