My 12 year old daughter has been unwell for the past week. Started with severe pain in the left side of her pelvis , very pale face and low grade fever. Eating well, no nausea , peeing and BM normal. Went to hospital, had an X-ray and urine test and nothing came up. Pain went away the next day but she remained pale. 2 days ago, she woke up to get ready for school, extremely lethargic, no appetite still pale. Went back to sleep for 3 hours which is not like her at all, refused to eat all day, low grade fever returned but was broken quickly with Advil . She remains pale and has lost about 5 pounds in the last week, a doctors appointment is booked for tomorrow but I am very worried...help!