My pup is 19 weeks and I have found clumps of hair all around the house. She also has some mats. She scratches like CRAZY

. I took her to the vet and it doesn't appear that her skin is dry, but after $100 they did sell me some soothing shampoo and conditioner, but it doesn't seem to help with the scratching. I have had 4 Yorkies in my life and I have never seen shedding and clumps of hair in my other Yorkies. But I am sure it will pass. Also, the vet said at this age their are going through a lot of hormonal changes that could cause itching and so forth.