I think it's varies based on the person. I just started walking again. The first couple of days my head was pounding. I kept going and it got better. I dream about running but I'm afraid of bouncing my brain around like that. I do bursts of fast walking. I get nervous because of my clumsyness. I do miss the days of running carefree, doing gymnastics in the yard. I think all we can do is try and see.

Good luck...