He had an IBD condition.  The vets said that was what caused his lack of
appetite, and the hepatic lipidosis that caused me to find that condition in
him.  The feeding tube saved him from the hepatic lipidosis but when it was
time to remove the feeding tube the vet screwed up royally.  It took her at
least two surgeries to remove the tube.  She used a larger coupler thing
that was in his stomach and it went down ok, but it couldn't come back out
the same way.  She actually tried, and she tore up his throat.  He had to
have surgery by a different vet to cut him open and remove the coupling.  I
took him home and then he had to go back and he got a transfusion from a cat
that turned out to be  FELV+.  They tried to change that story many times,
but the techs told me the transfusion cat tested positive.  Vet tried to
tell me Shadow could have had a latent virus that came out through this
trauma.  Good thing to know is that in most states cats used for blood
transfusion only have to be tested yearly.

Bottom line is that the vet used a feeding tube and coupler that was way too
large for a cat.  Her excuse was that Shadow was a large cat and needed
immediate nutrition and the larger the diameter of the feeding tube, the
quicker he would get well.