Thank you both for your responses.

Mark, you raise a lot of very important points. After running this week and experiencing a surge in my symptoms, I've decided to completely rest. My doctor told me that I needed to be symptom free for 7 days and I need to listen to that. The week before I was demonstrating an exercise to my rugby team and it resulted in a headache. So I've learned my lesson and realize I just need to be patient now--extremely frustrating for an athlete to do :-(

The interesting aspect of this is that when I experience an increase in symptoms, it is only to one side of my head. The right side of my head feels completely normal. However, the left side (particularly the bottom left) feels as though it is has been freshly impacted whenever I physically exert myself. Does this mean anything?

A bit of history: I have never had a concussion before. I am 33. In excellent health. I am mostly resting during recovery. My doctor said I only need to worry about limiting physical activity but that I should have no problem with reading, watching films, etc.