I am concerned for my 15 yr old daughter. We just went to the dr b/c we think she has mono. Tired, no appetite, 1 swollen lymph node in bsck ig her neck, fever, night sweats, itchy skin, yellower urine, some headaches. This has been going on for about over 2 weeks now. Blood tests were order for strep and mono....not sure exactly what test and if only spot test. I heard from the receptionist today that the blood work came back abnormal and need to come see dr. I am worried it could be something worse like luekemia.....