I am 20 years old last year I suffered a lower back injury in gym when I was performing hypertension so I went to doctor they say may be a disc problem so I rested for a month, gone to a massager also, a physiotherapist then also it is not been cured and one important thing I don?t know what is it but physiotherapist gave me some blood tests to have and one of them was of hla and it is positive in my case.