Having gone through cancer and having my left kidney removed. The back pain covered up my four collapsed thorasic vertebrae, which in turn covered up my three herniated disks. My injuries were due to a fall from a tree. At the time I shrugged it off, but as my muscle mass reduced my ailments came to the fore. I had a bout of Sepsis that had me in ICU for two weeks, and in hospital 8 weeks, and then home care as I developed neuropathy which causes awful cramps. Cannabis really helps, and does not immobilise me the way my medication used too.