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I am sorry Heather seems to be eating less and feels warm. She may have a fever. Normal for a cat is 100 - 102.5 She could have a bad tooth or an infection.If she has a fever over 103 apply a cold compress (not ice) to her tummy and pads.
Monday, she should see a vet. In the meantime: drain the water from a can of tuna into a bowl and let her lap it up for hydration. If she does, offer some tuna.
Go out and get a few jars of baby food chicken with no onion or garlic. Warm it to bring out the aroma. Most cats will eat that right up.
Please let me know if she eats and how she is doing.
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