There are certain meds that require gradual and supervised tapering…Neurontin is definitely one of those meds. This is nothing to fool around with on your own, and you should work closely with your doctor to achieve maximum success with minimum discomfort.
One of the side effects that may result by tapering off of Neurontin too quickly is a seizure. How severe that may be for you depends on many variables and it may not even happen at all, but I think you will agree that going forward on your own could result in some nasty consequences, so my recommendation would be to work closely with your doctor.
Recently I stopped taking Avinza cold turkey, in hind site, I would not recommend this to anybody. The withdrawal symptoms for me were enormously unpleasant and I knew to a certain extent that they would be, however, unpleasant is a far cry from life threatening. Believe me, I don’t mean to scare you…or maybe I do, just please do this with your doctor. Also, you said that your doctor was “changing” your meds. By changing to something similar your chances of withdrawal are lessened considerably, just something to keep in mind. Keep us posted on your progress. Good Luck and God Bless.