I had one recently with a phantom pregnancy - only in her case it was more like a phantom litter. She kept flopping down all over the house suckling this imaginary litter of kittens. You could see them, but they didn't actually exist, if you see what I mean. All that time she was full of milk which never let down , totally engorged and looked absolutely dreadful. At first I thought she must have had a litter somewhere and I spent ages trying to find them. She finally decided to "wean" the non-existent kittens at about 6 weeks. Stupid creature could have had a real litter if she wanted as my boy was ready and willing!

Liz