I was diagnosed with PPMS three years ago. I’m 64 now. When it all started I could walk and now after three years I’m in a wheelchair. I can walk very little, maybe 5 to 10 feet with a walker and it is very difficult. My question is, at this rate, how much longer do I have before I am completely disabled? Because it seems to me the MS has progressed really fast. Does anyone one out there share my concerns?