I was diagnosed - at the end of August - with vitamin D deficiency. The GP prescribed folic acid tablets 5mg (one a day) plus colecalciferol (vitamin D3) capsules (one per month). I knew something was wrong when I woke up one morning with severe aches and pains in just about every joint and muscle in my body. I think that I am getting better, but, my word! its a slow business. What puzzles me is, why should I have a vitamin D deficiency at all? I eat well and healthily, and I go out and get my dose of sunshine (as I have done for years). Why, all of a sudden, should I be stricken with almost unbearable pains and aches? Has being 81 got anything to do with it?