www.crazymeds.org

Created for "Mentally Interesting" , site is great source of info. --
several types & categories of Meds for many problems & disorders--besides "MI" -- including Pain.

Antidepressants , AntiConvulsives , & many more

OFF Label & Primary approved uses , pro/cons -- may answer some Questions.
also Lists side f/x (including several not commonly known)

In BASIC INFORMATION: "what you Need to know about Side Effects" will Link to more info. about Weight gain

Topamax--anti-convulsant is cited w/ weight Loss. When I took had no appetite, didn't want to eat; was prescribed for my migraines and did help. It can also help some nerve pain. Many have problems w/ it.
Zonegran is similar. < I used this for "mixed" headache dis.
Keppra , another anti-convulsive, has several uses inc. neuropathic pain, migraines & more; may be better tolerated than Topamax-- supposedly has fewer side f/x

many other meds Listed here that may have multi-benefits your seeking.

Lyrica, Cymbalta & Neurotin are The Main Meds prescribed for nerve pain, neuropathies; for some "miracle" meds but not for everyone. many experience adverse affects.
We're all unique; have to weigh benefits vs tolerable, or endurable side f/x.

Often combo's work best. Challenging process of trial & error.
Hopefully will find something that works or helps.


Good LUCK