I suffered a traumatic blow to the left side of my head approximately 4 years ago. I have since had 2 TIAs (one in 9-07 and the other this past week). After the first incident I had left sided weakness in my upper extremity only; however, after this seconded incident, I have weakness in the upper and lower extremities to the point of being on a walker. There was no change apparent via CT scan or MRI after either occurrence. Is it possible that I am having cerebral spasms? I have already been diagnosed with severe coronary spasms (I had to be shocked during one episode).