my kitten is 4 weeks old and is the last remaining kitten out of oa litter of 5. They all got lethargic and stoped eating, this happened one by one so it took a week for all four of them to die. I have tried everything I can think of, my vet said the only thing that could save them was a blood tranfusion. This last kitten seemed to be doing finr until today, it was eating & moving around then when I checked today it was constipated, trying very hard to get it out so it made him very tired. Now he seems very lethargic & wont eat. HELP!!! I want to save this kittens life but I'm running out of options and time. PLEASE HELP ME!!