I was prescribed 300 mg. x 3 per day of neurontin a month ago for...

I was prescribed 300 mg. x 3 per day of neurontin a month ago for tailbone/nerve pain. By the third day, I noticed my leg felt like it was asleep. This has progressed over the past month to the point where now my left leg is tingling and numb and sometimes my left arm is the same way. Could this be the neurontin? I can' deal with the spaciness, light headedness, and weird dreams, but this numbness/tingling feeling is driving me crazy. Should I stop the neurontin? Anybody else have this?