So my cat is a 3 year old male, and when he was born he had a neurological disorder that prevented him from being able to use his back legs. It has fixed itself with time, but he still gets nervous about jumping anywhere. My family consists of me, my mom, and my dad. We all usually spend our days in our respective work areas, which are pretty far away from each other. So recently he has stopped eating his food very often, and he'll meow constantly around the house, not stopping until someone comes out to the living room. And these are really loud meows, loud enough that none of us can get our work done until he stops. He also has started biting people, hard enough to leave a mark, for no apparent reason. Does anyone have any idea what might be wrong?