I do not think this is temperature related unless she got very hot.
It sounds more like a dietary issue causing nausea.
Give her one quarter of a ten mg pepcid a/c (famotidine). I usually add it to a tablespoon of baby food chicken with no onion or garlic Or canned cat food.Every 12 hours.
Remove all dry food and any wet with chunks, pieces or shreds.
Feed only smooth pate canned food or baby food.
If she gets dehydrated give her tuna water drained from the can.
Please let me know how he is doing .
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