I have four Cats, one, Tails is very agressive towards the other three. She stays under the kitchen table and the bed, and growls at the other three when they come near her. She was even having trouble with the litter box, and would only go to the bathroom in the kitchen. The other three cats do not provoke, her, smell her, yes, but they never attack her. This behavior started to occur only in the past 6 months. I think I may have to get rid of Tails, and I am devistated. She is only three years old. Please help!! I don't want to get rid of my baby!