... like? Beside the effects on your nerves, what are the effects on your body and mind?

My physician prescribed it to me yesterday for nerve pain from an injury. I took it last night and I was high as a kite. I had a hard time with my balance and vision. This morning I almost felt as though I had a hangover. I have a VERY high drug tolerance and metabolize them at a quick rate so I'm wondering if anyone else has had a similar experience