It's as Bellablue said lol

I have been mixing in a little hi life with the whiskers as recommended by you lovely people and she is eating the lot without pausing, it is great to see, normally she just picks at it and meows and bats me with her paw as if to say gimme something else.

I will carry on mixing it till she is on hi life properly, I'm pleased she likes it because whiskers just stinks the house out but hi life is lower in odour. Her poops are normal too so no upset tummy, must be doing it right