She was last seen yesterday morning when she was let out. She stayed out all of last night (although she often does) and didn't come back until about 5 min ago, when she strolled in very very slowly, walked around the living room and went straight back out again.
She doesn't seem to be as lively as normal, and didn't touch her food at all.
Should I be worried, or has just she just been out burning the candle at both ends ?? She is a very sociable cat, and would not surprise me if she was leading a double life with 2 lots of food etc.
It would be a right pain for me to organise a trip to the vets, so don't really want to do that if she is just a bit tired .