I'm on pregabalin, and here's the list of side effects I experienced (most since disappeared). I made the list so that I could be sure I'd have the details when I saw my pain specialist again. For some reason the formatting I used disappeared when I pasted it here. Oh, well. I think you can make it out.

-visual perception of movement when objects stationary.
-visual perception of depth, in 2-dimensional objects, e.g. text on computer screen
-perception of body moving (e.g. rocking motion), when it is stationary.
-episodic mental dizziness (not like body dizziness), I'm going down, totally overwhelming
-three major episodes, the last one lasting four hours
-involuntary muscle contractions
-twitching, when trying to sleep
-jerking movement, when stationary
-clasping movement in hands
-clumsiness, incoordination
-tremor
-cognitive
-difficulty in managing complex thoughts/tasks
-recall problems, aphasia (can't think if words, or finish sentences)
-stammering
-emotional lability
-very susceptible to crying
-insomnia
-weight gain

Like I said, most of those have faded. I still can't sleep on it, I'm still clumsy, I'm still easily confused for brief periods of time, I still have recall problems, but less so.

I think giving it a bit of time is a good idea, given my experience that the side effects fade away pretty quickly.

Lar