Sorry your having so much pain. I have up on gabapentin and pregablin. They really messed me up, corpse think straight! I have constant burning in both legs from the knees down. Feel it a lot more at night. Worse when I touch. I sprayed deep heat spray on them which kind of helped. A neurologist suggested it. You can also try magnesium spray, that's meant to help also. Worth a try

First you are Not a slob if you have to sit, lay or anything due to this damnable disease. Next what has your doctor said about the burning pain, make sure it is not a bad side effect of your meds on you.