We have had her for 2 weeks. She isn't a very big cat but even so I feel she should be eating more than she is. She started to eat ok a few days after we brought her home, then she went for her 2nd vaccinations and threw up! Since then she is turning her nose up at any wet food and I think just eats the dry food in desperation, but she does at least eat it! She acts like she is hungry, she knows where the food cupboard is and is all excited and follows me in to where we put her bowl and then walks up to it, sniffs it and turns tail. I feel she is looking at me and saying 'why are you starving me' you know...that look. 
The CPL fed her Felix so that is what I have tried (quite a few of their variations) and I tried a Whiskas pouch, but she is not having any of it.
If I offer her a tidbit of our food she would eat that but I don't want to get her into the habit of having that all the time.
Should I just keep trying different brands - will all this chopping and changing upset her tummy?
When we got her from CPL it said she was 2.57 kg in weight and I am sure she looks a little bit thinner now
. Although she still runs round in a mad half hour every so often so is not lacking in energy.
Gah why can't she just eat the flipping food!!!!