How long did your brain fog, body shaking, dizziness, zaps & heart palps / fast pulse last after you stopped taking Cymbalta?

I did a 9 week taper off Cymbalta 60mg. I know this taper was fast-ish, but I felt worse on Cymbalta than off. How long did your brain fog, body shaking, dizziness, zaps & heart palps / fast pulse last after you tapered off or stopped your Cymbalta?