My 14 year old granddaughter has been very tired, losing weight ( 8 lbs in two weeks) , has bad nose bleeds, has been sick, said she has trouble breathing. She thought she had pnemonia, now has a rash. She went to the doctor yesterday and and they drew blood. Called mom back about an hour later saying she was severley anemic and they would get back to her once they got the results on the rest of her blood. She is very athletic and pushes herself, she hasn t had a period in a while. What might we be looking at as a diagnosis? Thank you