Thank you everyone, yes i am not certain if total teeth removal is the answer here, but will discuss with my vet, she has picked up some today and eaten well, not sure whether to just keep an eye on her this weekend and maybe go a bit later, she is does not appear to be in discomfort as such, but i strongly suspect things are not normal in the mouth.

Oh yes i find it quite stressful dealing with two sick cats,not my idea of joy, i can tell you, but i can only do my best for them, and that i am.

Fingers and paws crossed we can get Ellie back to normal and this problem sorted once and for all, but from what i read, it is ongoing and chronic, so i am not holding my breath for such a positive outcome, but you never know eh?