My 2 year old BP shed Saturday night. I discovered that she had what appeared to be a piece of stuck shed on her back. I put her in some warm water, and the shed came off very easily. What remained on her back bothers me a great deal. She appears to have lost pigment under the piece of stuck shed. Her black areas are still black, but her golden areas are white. I checked on her again this morning, and the spot remains. Does anyone have any idea what this s. Do I need to get her to a vet? I am very confident in her husbandry. Worked very hard to get it just right. She fed last night without any hesitation. She did not mind being handled, and did not wince or jump at all when you touch the spot. Please help.