I know you asked him twice but since he hasn't answered I'm gonna answer you. I've been on it for 4-5 years so I can share my experiences with it as well. It was originally prescribed to me for mood stabilization and anxiety. Didn't really think it helped with either of those. So I stopped taking it. Then I ruptured a disc in my back so I was prescribed it again several years later for neuropathy. I felt like it helped a little but not a great deal. I have always had a hard time sleeping and this med makes me sleep great. I don't really have much pain in my back currently, but I continue to take it for insomnia. It makes me hungry after I take it. It also makes me horny. It makes me slightly confused and makes me slightly dizzy in the morning. Both of these are common side effects.
I have never been hypersensitive to motion sickness, but being on this medication makes me that way. I get dizzy and nauseous easy when on a boat and even riding shot gun in the car. This med is prescribed on label and off label for a wide range of things.