After talking to a close friend and moaning that I couldn't cope with the brain fog, he suggested I ask the doc to change me from 2400mg Gabapentin to Lyrica. I went to a locum who was very young and she agreed to this instantly, she told me to decrease by 300mg per NIGHT, I was in excruciating pain by day three and called my usual GP who had returned from holiday and said he wasn't surprised as it should have been 300 mg per week. I then slowed the weaning down and made the switch to Lyrica and I have never looked back. No more brain fog, more energy and marginally better at controlling the pain. Lyrica has been life changing for me.