I was diagnosed with Younger Onset Froto-Temperal Dementia in mid-2013, a few days after my 59th birthday. It took over a year of persistence on the part of my GP and myself to get to that point. My experiences getting to that point make me ask “How many people do have a form of Dementia that is NOT being diagnosed until much later in life or not at all?” I suspect that there at least as many people with early or mild symptoms that are not diagnosed as there are who are successfully diagnosed.