Hi Margn, welcome to this forum. Having PCS and not being able to exercise can be very, very frustrating. I was active in cycling before I was hit by a car while riding my bike in May of last year. I still get headaches and feel somewhat dizzy today, although I have been feeling much better lately. I tried to stay involved with my bike club by attending meetings and social events. It is hard not to be able to participate, but I think it helps to stay in touch with people. I still can't exercise much, I have been doing some easy pedaling without getting my heartrate up. I hope it won't take this long for you to recover. Don't try to push yourself.