Sorry to heard about Keko is not well.
Is so bad to have a ill kitty, if only they could speak.....

Two weeks ago Iuri wasn't eating at all and being very apathetic ,even he was loosing his fur. We took him to the vet , he got a check , got blood testing etc... nothing appeared to be wrong . We gave him two rounds of intravenous fluids with enrofloxacin in it, one at the vet office and another at home in the evening ( we are getting quite experienced on it)...and he felt Ok again in no time.

Good look to you Neko !