Is it normal to really really want to be an animal?

Its normal. They have simpler lives than us: eat drink and mate.

You already are an animal. If being wild is what you mean than be wild.

I sometimes wish I was a cat just because humans slave over them when they're pets, but I wouldnt trade a conscience just for an easier life

I kinda wish you would've gone more into detail. Because a part of me gets it, like wanting to be go out and be wild and free, and just live a simple life as a cute animal. And the other part of me is just screaming FURRY. I mean, both are reasonable, but... if you find being called a furry offensive, then you should specify why you want to be a animal next time.