Sounds to me like you're on the right track with this! Good for you. Good plans. Hoping you're feeling better fast!
Yeah, my cats are all milk kefir addicts. That's ok, keeps them healthy. Plus I toss in some fresh farm egg yolks [yes we have chickens too!] into the mix and they love love love it and scarf it down.
Let me know how you're doing as time goes along, ok?