Thanks a lot for your support guys. But unfortunately we are too late...

Today at 8 PM I lost my dear cat named Kuzya.

I was 10 y.o. when me and my mom found him on the streets. I was repeatedly asking her to take him home. My mother refused for a while, but finally agreed to keep him.
As the result a small kitten with just a tiny nose and two big eyes grew up to a big cat.

Kuzya was very intelligent and kind. He knew where his toilet was on the first day with us. Because of it we assumed that he was thrown away by previous owners and luckily was found by us.
He wasn't aggressive, I've never seen him hissing or attacking anyone. He was sweet and soft. You just needed to pet him and he would loudly purr. A fine man! Never was sick, was fully healthy and cheerful. He could run around the apartment like a rocket. He was carrying and loveable, always slept with me or my mom.

But, a few days ago he started to hide and stopped eating. We weren't expecting that from him. It was decided to bring him to the vet. In the vet they told us, that his organs are failing and his blood is pretty "shitty". It was hard for me to understand the meaning of those words. They made him a drip, but it only made the situation worse because of the swelling.
Kuzya died while my mother was holding him.

We still can't move on because of this situation. Kuzya was with me all of my childhood. I was petting him, playing with him and brushing him everyday. I always showed him to my friends and even some customers.

But now he's gone. I feel really terrible about it, like a big and important part of me was taken away. I really miss his fluffy tummy, that I liked to pet so much. I've never heard even similar to his purring, it was loud and deep.
I will miss him. Very much.

It was supposed to be his 14th birthday in this summer. Exactly at June we found him. And from that very day we were counting his birthdays.

Thank you everyone...