I would be more concerned about your next concussion than any attempt at exercising and getting back into shape. This accident changed your life to one that is still liveable. The next could leave you in misery for a lifetime. From what I can tell, your doctor does not have any idea about concussions or Multiple Concussion Syndrome.

Some years back, my dog broke his leg. The doctor who fixed it surgically gave us some Fentanyl to give him for the pain. The dose was so strong that he was running around the back yard like nothing had happened. Then, he stopped running and just wanted to lay down. He had felt so little pain that he had shredded the repaired femur. He ended up needing a second surgery by a specialist and ended up with a one inch shorter leg for the rest of his life. The second surgery was successful and the Fentanyl was much less so he spent adequate time resting until his leg was stronger.

What I am trying to say is your head hurts for a reason. It is telling you to take it easy. Pain killers may over-ride the message but they won't over-ride the reason for the message.

You need a serious evaluation by a concussion specialist ( not a generic neurologist) and even a neuro-psych assessment to determine how you function with reaction times and cognitive skills.

Your brain does not heal like a broken bone. It cannot make scar tissue. The damaged cells either recover completely or die completely. No in between. The stretched axons (connections between brain cells) remain weakened for a long time if not forever.

The most liberal athletic trainers and sport medicine doctors require a complete lack of symptoms before allowing athletes back onto the field. The conservative ones require normal mini neuro-psych tests before a return to activity.

You are risking the rest of your life. Be careful and think about your choices.

My best to you.