Unfortunately, Meezer's are very "interesting" cats, each having it's own personality.

I don't know if you remember Parker, my Meezer foster kitty. She HATED other cats. I had her isolated in another room and somehow, MooShoo was able to climb the baby gates to get at her. Needless to say, Moo got his ass whooped including several very deep bites.

How long has she been with you and the other cats?? Could it be that you introduced them too soon?? Introducing cats to each other is a very delicate thing. It takes time. Sounds like it might just be her personality.

I've heard alot of good things about Feliway, a diffuser that helps de-stress cats. Might want to try it.

If that doesn't help, a little tranquilizer might be in order. If the vet laughs it off, get another vet as it really is no laughing matter.

Good luck.