my cat, male a year n half old, out of the blue he will fall over and his legs will go all over the place in the air. i have noticed that his legs go weak before this happens he will do this for a matter of sec then get up and be normal and it will only happen like once a month or so. i have no idea what it is, i think its something to do with his legs or his back but im not sure. can any1 tell me what it may be or if they have the same problem.

the last 2 times i saw him do it, he was eating, the 1st time he went into the corner n just fell onto his back with his legs shacking in the air, looking kinda stiff, the 2nd time he quickly got up n his legs went weak but he managed to stop it, after i have to hand feed him cos he wont eat no more, but b4 that it would just be when walking etc.