don't understand theat either mate, i've been a long term sufferer of it, leg pain down my right hand hamstring for about 4 years, i had an MRI after about 3 months and it showed up one slipped and one prolapsed disc around L5/S1 level, i was down for an op but didn't want to have discs shaved or fused so was put on hold 'pending recovery'... i still haven't had an op and still have the pain most of the time
best treatment i had for it was acupuncture.