I go to a brain injury group meetings with others who had brain injury. It was set up by a man who had BI 5 years ago. He has struggled with the thinking so pretty much had to relearn basic things and had problems with long and short term memory. I've noticed most people who go there have bad short term memory and it is one of my main problems. Until today there has been very little signs of the man who set the group up to show he has BI today it's been clear he still struggles with short term memory twice I had to remind him something he had said he'd do and forgot. So is this most common problem?