I think a certain amount of side effects are to be expected ... Minor stuff.. Certainly NOT Hallucinations... Research the medication online before you take it, that way you will know the common side effects.

Seems to me your on a pretty high dose of Neurontin.. Is it 600mg 3 times a day? ..Or a total of 600mg per day?? .... I take 300mg total per day, I refuse to take more since it can cause weight gain.

Good luck