I’m with Tina and Belinda on this.
When I was started on Gabapentin (for the pinprick/electric shock type of pains) it was a buildup process. I was handed a sheet of instructions before I was even dispensed my first dose.
1x300mg capsule on day one, one morning and one lunchtime on day 2, one morning one lunchtime and one evening on day 3.
Add one capsule at each time on days 4, 5, and 6.
That was good for over a year (it has been increased since).
The verbal instructions were Gabapentin for the neuropathic pain and Paracetamol for ordinary pain.
About six months in to the Gabapentin, I did get very slight headaches in the evening, but not bad enough to worry about.