I am cautiously optimistic that there has been some improvement. I don't know if it is the folic acid, the fact that despite several previous wormers, I wormed her again on Sunday, or that her body has managed to fight whatever it is, but anyway, this week she has been doing a few firm poos and her appetite has improved dramatically.
Anyway, the real point of this post was to say that I had been through full sized bags of RC, Hills and Purina prescription foods, as well as large bags of dry food she had liked in the past, some of them up until recent months, when she started refusing dry all together. I bought Hills sensitive stomach, JWB turkey, JWB Fish and 6 or so others.
I did a recent order with Zooplus which arrived yesterday. I order a 1.8kg bag of Happy Cat and was please to see that they do a 300g bag of Bozita to try as it was one less large bag to have to force on the other cats.
This afternoon, I opened the Bozita. Five minutes later, she was eating it!!!!
So, looks like I will have to do another order and just be grateful that she is eating. It is the only way she is going to build herself back up.
SWe had solid poos for 3 days in a row, but sloppy again today

I am really hoping we can avoid a biopsy, watch this space.