So for about 6mths I've had extreme nerve pain, s1 area. All mri's, ct scans, X-rays, and myleogram a were as three Drs say are "perfect". The pain doesn't agree. My pm dr sais no emg but to try gabapentin 300 1x at night. I tried this about a year ago for shingles on my head and face and I got really jittery, defensive and snappy. Almost ruined my marriage. I'm very scared to take it again but it seems like the only thing any of the many Drs I've seen will do. Am I right to be nervouse?