I m a 42 year old female, I have chronic back pain in which I have had 6 nerve blocks, one epidural type and a S1L5 or something like that, none of this helped at all. My lower back right side radiating down my right leg into my foot both too and underneath sometimes with pins and needles, I am due to have Spinal Cord Simulater inserted but am a bit unsure about this.any information on this would be great but I have developed another problim this is happening a few time a day and started about 2 weeks ago I have very bad pain in my left leg and hip which when it gets bad makes my breathless with pain on till I sit down, I have had a brain scan recently which came back ok mostly except the following- Nonspecific Foci of white matter, hyperintensity in the periventricular region which in the appropriate clinical context could be due to early Demyelination?? What does all this mean??