My lazy dog

Hello everyone, I have 1 dog of 25 days when I bring him yesterday. But from yesterday I saw that he is an indolent kind of pet and he waste most of the time sleeping. I don’t know this is right or wrong. And when I am going towards him he acts like he is an active pet but it is not like that. I wish that some expert who knows this topic will help me get out of this condition. I want to make him in good health so please guys help me and even provide me some instructions to give him a strong diet. And what should I include in his diet plan? I am really worried about this because he uses to spend the whole day sleeping.

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