My cat is my best friend. I've had her 6 years. Last few weeks she just isn't herself. Still eating and drinking fine, will lay on me. But she's started spending more time outside and sleeping in weird places in the house that she's never slept before. She seems jumpy and on edge. Has anyone else had this? For info she way spayed at 6 months before she was ever allowed out and I got her as a 12 week old kitten so has only really ever known me. Any help much appreciated!