Does anyone know?

I am worried about my cat. In the last 24 hours he has started acting strangely. I don't know if it is just a phase or if he is really sick. He was growling at my daughter and the dog. (this never happens) And then when I would set him down after picking him up it appeared that he was having a hard time standing, all of his legs were shaking. Does anyone know what this might be? I'm worried, but in the past when I have jumped and just taken them to the vet, it has turned out to be nothing.

ur dog must have done sth to scare him.. how long have they been together and are they always supervised?

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