I was holding my cat, but then he sort of jumped out of my arms and landing with a loud thud onto the floor. He's been limping on his back left leg, and he went and hid under a bed. He's pretty pissed at first, but I got him to calm down. When I get him to walk he still limps though, pulling his back left leg up with every step. He won't jump either, instead he sort of climbs himself up onto the bed. But he'd rather be out of sight right now. Should I take him to the vet now or will he recover quickly? Pic related, it sort of looks like my cat.