(((Mike)))
Most of us can identify with your stress, exhaustion, anxiety, fear of the dives, etc. The early weeks of FD, even without DKA and a kitty without an appetite, are stressful. For me, for any kitty, FD or not, not eating stresses me more than anything. It takes a lot of work to get them to eat and it's so important that they do. I agree that it's a good idea to discuss the ondansetron with your vet and an appetite stimulant. I like cyproheptadine better than mirtazapine because you can give it more often, if need be. A lot of vets will automatically give mirtazapine so see what your vet will give you if you ask for the cypro. A lot of times, it only takes a sliver.....not the full dose the vet will tell you to give. I'd start out slow on the stimulant, if needed, and increase if he needs to move up to the prescribed dose. You should discuss this with your vet as well.
The dives are also extremely stressful. I told someone the other day, maybe you, I'd rather deal with flat low numbers than dives. It seems we have a lot of divers these days, including my Gracie lately. When you can get him to eat, you will learn the best way to control his dives as Sienne has done with Gabby. I've had to change the foods I use for Gracie because the first one, which controlled the dives marvelously, she developed a sensitivity to and started vomiting with it. The second one worked well, too, but it had fish in it and we've take her off all fish. The third didn't do the job. So now I'm using Soulistic Good Karma that I get at Petco. Elise uses it, too. It seems to be doing the trick and Gracie loves it. I buy it in the packages but the cans have more calories so you might want to use the cans to keep Webster's calorie intake up.
Life does get back to normal. FD is all consuming at first but I promise, you will learn to roll with it. We all have to because life does go on around us and we have to be in it. But don't rush yourself right now.....just get as much rest as you can and be kind to yourself. You're doing great.