The good news is that my cat's dandruff was temporary and, after a week of intensive stroking and combing, it has completely cleared up, so I'm guessing it was a seasonal thing.

The bad news, however, is that she is being sick immediately after she eats and has loose stools, although the rest of the time she seems as right as rain. I should point out that we have just moved and she finds travelling and moving very stressful. She has been like it for a couple of days now so, obviously, if it carries on I will take her to the vet. So, I was wondering if anyone else has experienced this with their cat after they have suffered a period of stress and anxiety?

I have noticed lately that our cats, and neighbor`s cats, are all looking a bit "poorly" and straggly.
Discussing this with my old neighbor lady, she said it is normal at this time of the year, especially with the long warm Autumn and the rather sudden onset of very cold weather - they haven`t had time to fully grow their Winter fur (the thick compact downy mat against their skin that they shed in Springtime), so they are not very happy with the weather situation, but should soon adapt.
A diet a bit richer in natural fat will help their fur growth.

Thanks Smoky. I did in fact up her high fish content food, which I am sure helped her fur too.

However, what concerns me now is her vomiting after eating. This is a new thing that I am hoping is just stress related

This may also be a change-of-season related issue. Our cats always get more barfy as winter comes -- they're sensitive to the cold. The trick is to turn up the central heating for the little darlings and make sure they have someplace warm to sleep. You should also make sure that the food isn't cold (eg, if you keep the tins in the basement / larder or in the fridge, it's probably worth letting them warm up to room temperature before serving).

Finally, you might try serving half-portions twice as often, as sometimes our cats get greedy and it's the pure scoffing that causes them to be sick.

I've long since discovered that a few extra chuffs spent on the heating outweighed the hassle of going around the house cleaning up puddles of barf, which normally bypassed the easy-to-clean tiles and went straight onto the expensive oriental rug (or our duvet, bless their little hearts).

If keeping your cat warmer doesn't help after a few days, it's probably worth a visit to the vet. But if the cat is still eating reasonably enthusiastically and not losing weight, I'd give it a few days. It's when cats go off their food that you really need to worry.

My Pabli barfs all the time for nerves and he has been puking his brains out lately. On my expensive purses. Anyway, that's another story. I cosign what people above said- I think it is stress and seasons and should sort itself out. The weather is weird.

I'm not an expert on cats, but dogs can get stomach bugs, just like us (albeit not from the same virus).

My doggie got one at the beginning of the year, and after a week of loose stools (getting worse) she ended up at the vet.