Neo sounds a lot like my Ripley. One of my vets said he thinks Ripley suffered from Feline Rage. All I know is he would stalk and attack me out of the blue. I was terrified of him for years. He started it at about 3-4 months old and the last true attack I saw from him was when he was 10 years old. He's 16 now and has been pretty mellow for the past 6 years but it sure was a rough ride the first 10. I have many scars to prove it.

BTW, Ripley was neutered at 5 months and the vet hoped it would calm him down - it didn't so the vet suggested female hormones as an option but I refused them. One vet even suggested declawing him since I was getting so scratched up but only as a last result. I refused that also but boy there were days... There weren't a lot of options back then.

One other odd think with Ripley, since he's gotten older he developed OCD. Maybe it's all related somehow.

Good luck with Neo. I sure hope the Feliway helps.