At first I didn't take him to the vet because they told me to wait another day and see how he evolves
. After a while I noticed he could harldly keep his balance so decided to take him to a different vet. When I called they told me to bring him in right away. Once their, they observed that his sugar level was down and treated him. After a while he got a little better and started eating some boiled ham. The little bugger ate it like it was his first meal in days (well it practically was). Anyway they are keeping him for observation for a couple of days but at present shouldn't have any serious problems.
I guess that if you look at the bright side, I can say that I was very pleased with the breeders I purchased him from. I phoned them and informed them about the situation and they immediataly told me that they would pay for all the expenses, without any hesitation
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The only thing now is that we miss our little boy, especially my daughter, and we are awaiting his return to us :Puppy: .
Well let me tell you that I will never set foot at that vet that told me to wait another day, I went their because it was closer to my flat. I also wish to thank you all again for your concerns and advice.