Gabapentin
"I took gabapentin for 1 month. My Dr started me at 100mgX2 @ bedtime. I slept great but had excess daytime sleepiness. The first week I felt really calm but had no pain relief. The next week, my mood began to go downhill & still no pain relief. Week 3, my mood became depressed, I began having increased anxiety, increased blood pressure to the point of pre-hypertension, hot flashes, memory problems, & feeling disoriented, still with no pain relief. Week 4 I got hit hard with a flare. I couldn't tell the difference between whether things had happened yesterday or last week, I was getting unusually angry, & I started having horrid back to back panic attacks. I discontinued without tapering down & interestingly, my flare reduced in intensity."