My experience with Gabapentin was very similar. I stopped after 1 month because the fatigue was so much worse than before I'd started, and I didn't care for the "nightmarish" quality of my dreams - which I attributed to the Gab, and they stopped after I got off of it.
diagnoses: mono 1972; postviral CFS 1997; fibro 1998; CEBV 2005; UCTD (dx limbo) 2007
meds: occasional low dose xanax for sleep, artificial tears w/ ointment at night, ibuprophin (none of which manages the problems very well!)
We cannot avoid the birds of sadness flying over our heads, but we need not let them make nests in our hair.
~~ Chinese saying as quoted by Helen Nearing