It's hard to say for sure.. I had a RSI work comp claim due to some of those symptoms flaring up..
The fuzzy brain & words & vision problems faded away fairly quickly - 2 months approx after stopping the Rx.
I was having PT for the RSI- arms, shoulders & neck at same time and it took much longer to recuperate from that.
I think the causes overlapped so much, and this is only my thoughts for how it fit for me..after all my study on it.
Drs never considered statins as a factor at all..
I was the one that decided to stop the Lipitor and asked a pharmacist if it was safe to do..

One of my co workers said she had the same problems when she was on Lipitor , muscle soreness and RSI type issues..