Cat's feet still swelling

[Kobster]

Does she have any pain with the swelling? Thinking juvenile polyarthritis? Or heart failure could cause edema. Any labored or rapid breathing?

[librarychick]

I also have a possible suggestion that seems to fit.

Both my boys got stung by bees a few times, mistly on their paws. Each time it happened the affected paw swelled right up, but it went down within 12 hours...is it possible it's a bug bite?

Do you have bees, wasps, spiders, or anything else that might cause a swelling bite?

If you notice it continues happening, watch the size of the swelling very carefully. My sister is allergic to bees and everytime she gets stung it gets worse...if it is a sting and the swelling gets worse each time I would be very concerned.