I suffered migraines for a long time. Few months ago, when I met Dr. Arroyo, I was having an average of 10 episodes per month. Just two weeks into the program, the migraines started to be shorter in duration to the point where they simply disappeared, amazing! https://youtu.be/CSSLSn1RwwI
Headache isn't a side effect of Neurontin. It is probably from your sinus issue. You can use a humidifier or steam (don't burn yourself) to help open the sinuses. Steam in a hot shower is good too. Anything to open up the nasal passages.