Did the Dr. by any chance check for a Urinary Tract infection? My middle daughter has had trouble with them since she was around 2. We often know she has one or is getting one when she is complaining of her stomach hurting off and on and she would run a low fever off and on. If we just let it go the stomach pain would get worse and she would eventually run a high fever, like 104 or even 105. After that happened once we learned to take her to the Dr. before things got that bad. Now if she starts showing symptoms of a UTI I just take a urine sample into the Dr.s office and they check it for me.
Good luck!
Dione
A LITTLE ABOUT ME: I am a homeschooling Mom to 6 beautiful and bright children ages 14, 13, 11, 10, 8 and 6. I have been married to my wonderful husband for 15 years.