<s>[INST] My daughter is 7 years old weighs 41 lbs. She has a low grade fever thats up and down 101.00 - 98.3. She also has stomach pain off and on and complains her legg is sore i think it is the right one. Brought her to her doctorthe other day he checked for strep which was negative and said it is just a virus. I am concerned about the stomach and why her leg would bother her. She is sleeping alot from fever my guess. Thanks for any info, William Engel [/INST] Hello and Welcome to ‘Ask A Doctor’ service.  I have reviewed your query and here is my advice. Viral illness can be associated with variety of symptoms such as fever, bodyache, joint pains, lethargy and poor appetite. Most such symptoms improve over a period of 4-5 days. If your daughter persists to have such symptoms then repeat clinical and laboratory evaluation to rule out any bacterial infection or inflammatory disorder is needed.Hope I have answered your query. Let me know if I can assist you further.Take care.Regards,Dr. Archana Verma </s>