r/u_Bengal-_fan

Any bad experiences of severe neuropathy after lower lumbar fusion? I’m 54/M, 5 weeks post alif L3-5, tlif L5-S1, 360. I felt pretty descent a couple weeks post surgery. Woke up one morning and the neuropathy is out of control. I take 600 mg, 3x a day Gabapentin.
Can anyone explain their post surgeical experience w/ neuropathy, feet throbbing and lower back pain?