I have two sister kitties that are about 10 months old now, I had them since they were 7 weeks. I think they might be in heat, eiether that or there is something wrong with my house and they are trying to tell me about it. They are constantly meowing and sniffing the floor and just about everything else like they have never been here before. They are rubbing themselves against the dog and me and the other cats. I'm pretty sure this is because they are in heat, if I'm mistaken then I might have a serious problem on my hands here. I did a lil research and read that they consistently meow to call out to the male kitties in the neighborhood to let them know they are in heat. All I know is that they will not shut up and I don't know how to tell them that their male mate isn't coming and even if there was a male kitty out there, he's not coming in here. I have a male kitty who we refer to as Uncle Wicket because he took good care of them when they were kittens, they keep throwing themselves at him and he shows no interest because he is neutered, plus I don't approve, he is their uncle and he's twice their age. The dog just thinks they are absolutely crazy. This is my first experience with female cats that aren't spayed so that is why I'm somewhat confused as to what is going on. It's been about four days now and they show no sign of calming down. Basically what I need to know is how long will this go on for and how often does this occur? I plan to have them spayed in July but I read that you should have them spayed before they go into heat or right away after their first heat. Does anyone know why this is other than to keep from going insane? Any advice or similiar experiences would help.