So my daughter has been ill since Friday gone. She started with tiredness and headache and then temperature increased and has been really poorly with it. Doctors prescribed her some antibiotics Tuesday night because she really wasn't coping with it. She's Been taking them on time every day since Tuesday night. All the way through this she has complained of lower back pain, I wasn't sure whether this was connected to the illness or another cause. Now her temp as improved and she seems to me much herself today but still complains of this back pain? Is this something serious I should be worried about? Is this connected to this latest illness?