just thought i'd give you some more info.
i would not give her raisins at the moment, if she is going into stasis (or is in stasis already), sugary things like raisins increase the gas in the gut and in a gut that's not moving this causes serious problems (they can't fart or burp so the only way of getting gas out is by normal gut movement)
you could try giving her rolled oats (like porridge ones but not instant) - mae, my rescue who goes into stasis on a fairly regular basis eats these even if she doesn't touch anything else - no more than a teaspoon a day though. ideally you want to get some fibre into her (hay's best)
the food you're giving her, is it the same as what she's been on before you got her?
i would also suggest probiotics. you can get some from your vet, there's also a product called lifeline that's a mixture of all sorts of good things including probiotics and stimulates appetite. you can get it from here
http://chocolatechinchillas.com/id6.html and if you email dawnna that it's an emergency, she'll ship quicker.
oxbow critical care - they do two different version, original and fine grind. original has bigger bits and i couldn't syringe it - many animals will eat it off a spoon or of a finger. fine grind is a fine powder and fits through syringe easily - i have to use that one for mae because she prefers it for some reason, even though she now eats it off my finger.
the important thing is: she *needs* to eat and she *needs* to poo. keep the diet basic (ie no sugary treats) and see the vet asap. g.i. stasis is very painful and dangerous condition, the quicker treatment starts the better prognosis. if the gut stops, is not treated or treatment is not effective, organs start shutting down.
mae's had this on four different occasions, the first time she very nearly died (all vets thought she wasn't gonna make it), the consecutive times were easier as i picked it up early.
remember they are prey animals and will often not show any sign of illness. quite often when symptoms are obvious, it's too late. so, anytime they stop eating or change behaviour in any way, you need to suspect something's wrong (even though it quite often isn't - better safe than sorry)