Dear Doctor, I last had a bone density scan a year ago which showed Osteopenia in my spine although hips were normal. I have an 8 history of eating disorders (mostly bulimia and only slightly underweight although irregular periods, until the past 19 months when things became more anorexic and BMI has been between 12.5-15 with no menstruation). My current concern is that following a fall a month ago I have pain in my coccyx which shows no sign of improving and I worry it may have 'crumbled' and that this is the beginning of me losing height. Is this likely? Many thanks for your help.