save our mum

ever since before i can remember my mum has been the rock in everybodys lives. from holding down many jobs, raising 3 children on her own, being the emotional support to many of her friends, and even in her spare time opened a charity shop for troubled and ill children in mallorca.
well now is her time of need.  we moved to mallorca 8 years ago from england. she had a car accident six years ago, and her spinal injury was misdiagnosed (4 herniated discs, 3 slipped discs and 2 critical stenosis). local hospitals have been running tests for 5 years but have not given a diagnosis. the last year i have watched my mother deteriorate drastically, from an active woman to not being able to carry her own handbag. out of desperation my mother sold her car and all her possesions including her engagement and wedding ring to try to get some answers.
recent  testing by private doctors has shown her deterioration comes from not only her spine but a detection of lymphoma in her body (with failing organs spreading disease in  ovary, head and neck and lung).   she has been left too long, and it is now critical, the only option available at the moment to save her life is DNA  dignostic treatment, which is at a cost. she is on sick pay which barely covers rent, let alone the bills and food for her and my little brother, i have already taken out a loan which has gone on medical bills and the bank will not give us anymore money.
i am petrified at the thought that me and my brother are going to lose our mum, she is our only family.
i am on my hands and knees begging for help as i do not know what else to do and i know that with a little bit of kindness from the world you could change a familys life