I Am Currently On Gabapentin 600 Mg At Bedtime For

I am currently on gabapentin 600 mg at bedtime for peripheral neuropathy, and it has helped tremendously. I've been on it almost a year now, and I've just noticed a tremor in my thumb, and one episode of waking up with "nystagmus" that lasted only several minutes, but was quite disturbing . (I'm a retired ophthalmic nurse).
Should I try a lower dose of gabapentin, or just try to get off of it altogether?