I'm sorry but this seems like it's a question you should really be asking your doctor about. Your doctor prescribed the meds, so he knows best. If the medication is not adequate enough for your pain, or you get adverse side-effects, then that's also something you should see your doctor about immediately.

How can we know how much you should be taking. Every RSD patient is different. We have different bodies, pain thresholds, and we react differently to different medications.

This is a far to weighty issue to be asking here. I mean, this is a direct question about the dosage we think you should be taking. It could even be dangerous to listen to anyone's advice here if they are prepared to give it.

How do you feel? Do you feel like your pain is under control or not? Discuss this with your doctor.