Emma is sleeping next to me right now, and she is twitching in all four of her limbs ... is she just dreaming or is that something to be worried about?
Just dreaming, almost certainly. Obi gets such active dreams that not only do all of his paws twitch (the twitching can be very jerky, too), but so do his ears and his tail . . . and he'll chatter in his sleep. I wish I knew what he was dreaming about! I try not to move and wake him, because it's so funny, but I usually start laughing and that wakes him up. I wonder, even if he could somehow tell me, does he even remember what he dreamed about (I remember my dreams, but my husband doesn't remember his)?
Your kitty is dreaming - it makes them twitch very violently sometimes!! But yes, Susan is right - be sure not to wake her it can give them a real fright and is a shock to their system - same as with people!