I'm only taking 300mg of gabapentin but I'm seriously thinking of trying to stop it as Im on 4 other

I too, am on 300mg of Gabapentin three (3) times a day for many years now to help control pain. Before stopping any prescription medication, always check with your physician or pharmacist. In the past year (they say I had a heart attack in September 2014 and changed many of my meds) I've been taken off many medications and only a few have required me coming down slowly before stopping (normally only 2-3 weeks). Also, let your physician or pharmacist know of any side effects you're having and they should be able to tell you what to do to stop the side effects or prescribe another medicine in its place. I was on Diclofenac Tablets and Percocet to control pain, which made a cough I've had for many years much worse, coughing all the time and loud. One of my physicians thought I was having a drug interaction/reaction and took me off the Diclofenac Tablets and replaced it with Voltaren Gel 1.0% (which has Diclofenac Sodium Topical Gel in it); also took me off Percocet and replaced it with Hydrocodone 7.5. My cough did not stop, but it became less bothersome; no more coughing all the time and in people's faces, etc. It pretty much went back to the way it was before the drug interaction. I hope this helps. Be blessed.