so, for a while now, only one of my kittens ( Luna ), has been making these, churring/chirpy noises at me when i give her attention or even when she runs up to me to be pet and loved up. i'm not sure what this means? Luna and Cheeba are both very affectionate kitties, they love all the loving they can get nd purr so loud all the time as soon as you even pick one of them up! Also, sometimes they will wander around the house making these little mew sounds.. i always call out to them and ask whats wrong, obv they wont understand me! LOL but if it goes on for a little bit i will seek the out and bring them over with my husband and i.. are all these sounds normal for my kitties to be making? or is there something maybe wrong?