I'm a vet tech and even though those are only a few symptoms it could be A lot of different things. I would highly recommend an exam. At a veterinarian as soon as possible.😿🙏💖
I'm not a Vet & should be seen by one very soon. It could be a cracked tooth or something to do with it's teeth like an abscess. Try putting a warm compress where it's swollen (make sure it's not to hot & not too hard) only if Cat will tolerate.
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