My 19 month old cat slept all afternoon. It is very unlike her and I thought I'd keep an eye on her for the next couple of days... but this evening she has gone downhill. She has hidden herself away in a quiet corner where she doesn't normally go, won't come out for food or water and has a frightened look in her eyes. I picked her up to sit with me on the sofa but she got straight down and hid herself again. I'm really worried about her. I've looked online and her symptoms don't seem to indicate poisoning, which is what I was most pried about, but I can't find anything which exactly matches. I'm not sure whether to leave her overnight or whether to try and find an emergency vet (which will be difficult as I'm a single parent so would also have t fine childcare). Is there anyone who can advise me please?