Has the dr talked to your family members, to confirm pain levels& status?, if he isn't 100% sure of the pain level you describe?
Is that the issue , or just that he will not up anyone dose no matter what??
Some people metabolize faster than others too, so naturally more meds or doses more often are needed for them.
Any timed release or long acting ER or CR tried?
What about anti depressant?
Often pairing that with pain meds makes the pain med work longer and better.
I read this long ago but I think it is still an option, but haven't seen it posted lately..
Are the seizures related to the RSD or a separate condition?
Did you find all of our useful sticky threads- in the upper section of this page -
http://neurotalk.psychcentral.com/forum21.html