So my little baby Pali has a sprained paw. You may wonder, how does one sprain their paw? Well, my cat will find a way. The poor girl's paw swelled up to three times the size of her normal paw. In hindsight, it looked hilarious! But she couldn't really walk very well and just kept laying down because her little paw hurt.
BUT! Her paw isn't swollen anymore and hopefully whatever she did to sprain it won't happen again :)