Hey...
I just bought a beagle around 5 hours ago...
He's 31 days old... I think that's too early to separate him from his mom isn't it?
So he's trembling and shaking , can't even walk properly... he's whining
I'm afraid I might lose him... his nose is a little dry too... please guide me...
WHAT TO DO??

Yes, that's too young. Dry noses are OK (that's a myth.)
Where did you buy him? Has he had any vet visit, any shots, anything? Did you see the mother?
Keep him warm in a towel and close to you. Sleep with him. Make sure he has water at all times. Get some special puppy food. You could try a scrambled egg and some whole grain bread or rice or hamburg. Don't leave the poor thing alone. He's nervous and scared.

I bought it from a vet.. he has had his first vaccine shot about 4 days ago.. I didn't see the mother.. as she lived quite far from the clinic...
Now, he is fine and plays with me. . But I started feeding him a dog food called royal canin.. and since then he has blood in his stool... what should I do! Can I give him some normal milk??