question: Hi, I had symptoms of a brain stroke in June and one of the symptoms was numbness which started in my left leg at the back of the knee. I take 300mg aspirin on a daily basis now. Today i woke up and my left knee feels stiiff and I have surface bruises along my shin and at the back of my calf . I have not been doing any major exercise this week or last week and had no stiffness yesterday. Should I be worried about this?