A. it might be an allergic reaction to the fleas or even an allergic reaction to the flea treatment ( how long ago did you apply it? if not long consider washing your cat). obviously it could be non related as well. If it doesn't go down for more than 48 hours I advice to take her to the vet.
A. Your cat appears to have a mixture of symptoms which may indicate she isn't feeling her well or has an underlying issue. If she continues to not feel well after a day or if any of her symptoms worsen, it is best to schedule a veterinary checkup to see what may be causing her to not feel her best.
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