Welcome Ginny (love the name) !! Can't wait to see pics.

The hissing - don't worry too much. Your older cat will just be asserting herself. "I was here first ! I'm in charge". Keep an eye on them though . Don't want Pooky getting too dominant with the baby.

Runny tum - Yes quite common. If you've changed her food that'll probably be whats done it.

Has she been wormed/flea'd if not I'd do that as soon as you can.

Heres to a life time of happiness together !!

__________________

If I am sitting on it then it is mine.
If it is shiny then it is mine.
If I am eating it then it is mine.
If it makes an interesting sound such a tinkle or a crinkle then it is obviously mine.
If my velvet paw is on it then it is mine.
If I have scratched it, it most definatly is mine.
and finally.. if it is yours it most certainly is mine mine MINE !!
The gospel according to Nefertiti

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