I have Small Fiber Polyneuropathy (SFPN), and my Neurologist prescribed Gabapentin (Neurontin) to block the pain signal From the tissues in my burning feet & lower legs. He added Duloxitine (Cymbalta) to block the pain receptors in the brain. I only get relief when I take BOTH.
I have Autonomic nervous system issues, too, like Gastroparesis (slow stomach emptying), slow gut motility, Constipation, urinary hesitancy, and reflux. A wedge pillow helps eliminate the reflux; a Gastroparesis diet without raw vegetables (cooked only & sliced small) helps all of the GI issues; and Sticture dilation by my GI provider helps swallowing issues. Doesn’t solve everything, but helps A LOT.
Hope this helps! Best Wishes for getting relief!