Finally!! I heard back from the internist. Not really too much to report, but Alex still is testing postivie for ketones and he still is not interested in food. Doc said the loss of appetite goes hand in hand with the positive ketones. In looking back at all the changes since 7/15, he is trying to determine the cause of the ketones b/c we really don't want to do through this more than once.
on 7/13, saw old vet just to bring her up-to-date on Alex and wanted her to order PZI--she wanted urine sample
on 7/15, I changed insulin to BCP PZI--Internist says we might need to go back to ProZinc
on 7/20, urine culture showed a UTI and we started Clavamox (internist is not certain that this urine culture was obtained properly b/c if you read about it, they are supposed to use a needle to extract urine from the bladder--he says that something from the air could have made it show up as an infection)
on 7/22, Alex threw up his dinner (different Wellness flavor we'd never tried before)
7/23, didn't eat much
7/24, didn't eat, very lethargic, hiding in unusual places--we went to ER.
Doc says we're still early in the game--only 24 hours in and it could take between 3 and 5 days.
In the meantime, and don't you find this odd, Audrey (Alex's littermate) appears not to miss him at all. The same kind of thing happened to the prior set of cats I had. The male was pts and I feared the female would mourn, but she seemed happy to be queen of the roost.