I took Cymbalta for about 3 months, I began feeling awful. Tremors, trouble swallowing, tingling, teeth grinding, severe confusion, dizziness and on and on, I quit taking the drug 2 weeks ago, I've never felt this bad. Any idea on how long it may take for this poison to leave my system? My doctor put me back on Zoloft but I am getting scared that I may never feel well again.