Leo was diagnosed last Thursday because he was walking funny. Which turned out to be neuropathy. His walking has gradually gotten worse. This morning he did walk to his litter box and then back out to the living room. Tonight when I got home he hadn't moved from his bed, had peed in it, and won't walk. He won't even stand up. What do I do? Is he in pain? Is that why he isn't walking? The vet gave me Gabapentin, but I haven't been giving regularly. Should I? Is there a store that I can buy the vit b to help treat it or do I have to order it online? I just need some help. I don't know what to do. Thank you!!