In brief my DD has had a constant headache for 16 months, numerous scans, x-rays, blood tests and consultations have ruled out anything sinister but can give no clues as to the cause. An osteopath correctly identified that she had grown considerably over the last 18 months, found her pelvis, spine and neck slightly out of kilter and said that the headache was the body's response to this "stress" and would remain until she had stopped growing,poss another 2 years. The headache does not respond to any pain relief at all and gets worse if she gets any kind of infection. If we have to wait this out then we will but I'd hate to think we missed anything, has anyone come acroos this kind of thing before?