This is not all down to IF, since I began a regime of weight-bearing exercises three months ago, which are obviously benefitting me - but I felt pretty damned good before I started those!!
I've put my story on my blog (still a work in progress):
http://nobreadisanisland.blogspot.co.uk/2014/02/today-im-celebrating-two-years-of.html
I haven't got round to mentioning this forum in my post, yet, but I will, since I regard it highly!