Does Squallie seem any tiny bit more relaxed, sociable, or any way brighter in himself when the insulin's wearing off? If yes, that's a very good indicator that the Vetsulin action is making him feel like carp. Saoirse was the very same way (on Caninsulin - UK brand name for Vetsulin). She started trying really hard to hide somewhere inaccessible come injection time. At first I thought it was me mucking up administration of the injection but it turned out to be that she hated the way the insulin made her feel. Nine or ten hours out of every cycle she was miserable and lethargic, and spent most of that time hiding behind a curtain, only coming out to get food. Caninsulin absolutely
hammered her system. Before the dose kicked in and also when it was almost worn off she would be brighter and more sociable. As I said to our vet at the time, it was like having two different cats.
All of the above changed when Saoirse was switched to Lantus. It was like night and day. The harsh drops and wild swings disappeared and
immediately the hiding stopped; and so did her attempts to escape from further injections. The lethargy vanished, too, to be replaced with alertness and engagement. She became brighter, healthier, and happier with every day.
Not every insulin agrees with every cat. It is a hormone, after all! Just as Caninsulin didn't agree with Saoirse, some cats can't get on at all with Lantus but positively thrive on Levemir (and vice versa). If Vetsulin isn't right for Squallie there are other insulins out there, and you
will find one that is right for him.
As is oft said here, sometimes the right food is the one your kitty can eat.
The current situation is temporary. The two of you are still working out the steps of your very own sugar dance. It does take a little time, but things
will get better - for
both of you. Hang in there; we'll be with you every step of the way.

((Lucy & Squallie))
Mogs
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