Puppies usually DO throw this much of a fuss after being seperated from their littermates. Pixie (my chihuahua) cried & cried for almost 2 weeks straight at night

So I know what you are going through...
It is important that your pup has a safe place to sleep, free from drafts and harm. Many owners have their puppy sleep in an exercise pen, and although this can be a good choice, many puppies settle down quicker and sleep more soundly when they are snug and warm in a crate. Never hit your puppy for crying. If your pup is having trouble sleeping soundly in his crate, place a sheet over the front door of the crate. Leave the side air holes uncovered. The pup will soon learn that when the door is covered, it is time to sleep for the night. Some people choose to allow their pups to sleep in bed with them. Remember, this will quickly become a habit that will be difficult to break later. If you allow you puppy to sleep in bed with you, make sure that this is something you want to continue when the pup is fully grown. It is easier to train a young pup, than to retrain a grown adult dog.
If you do not want to allow the pup on your bed, wrap a shirt, one that holds your scent, around a warm-water bottle and a ticking portable clock. Tuck this next to the puppy when he is put to bed for the night in his crate. It will simulate the warmth and beating heart of his missed dog family, and may be enough to calm him.
Good luck, I know how frustrating this can be