97HondaSE

I have a 1997 Honda Accord Special Edition. It has the factory alarm on it. Recently it started to sound the horn like someone pushed the panic button on it, but no one did. Everytime I lock the car with the keyless remote, a few minutes, hours later, the damn alarm goes off on its own. I would be inside my house and the remotes nowhere near the car. Has anyone had this problem or know what is causing it? I also noticed that when I unlock the car and get in and start it, I can still hear the clicking of the lock actuators clicking several more times like it is still trying to unlock the doors. What is going on? Please help. Thanks.