Full Question:

I have been taking Cymbalta 90mg. at night for chronic pain for four months. I recently had a lightening visual in my right eye that lasted only a minute or so with no pain before or after, no headache involved. The lasting effect was total weakness in my right hand that has lasted to this day with no improvement. As I am right handed, this continued weakness is very annoying. I am now weaning off the drug due to severe vertigo and severe muscle cramping, neither which I can...