Tramadol was the best med i come across for PN, after trying Neurotin, oxycontin, and a few other mind busters as well, i was lucky in that i had no bad side affects, only a leg jerk every now and again, but of course we are differant in our reactions to differant meds, just seems a shame that you are happy with that combination of meds and this side affect is troubling you, i hope your doc can work out something to give you the same relief.
Brian