You just demonstrate that the concussed brain is always a concussed brain. It will be sensitive to stress, whether it is emotional stress, physical stress or chemical stress.

I would not call this a relapse. I call it life after a concussion. Expect this to happen from time to time. I plan on it happening after a stressful event. The stressful event may just be an exciting and busy event with no negative stress involved.

Welcome to the club of those who recognize their long term limitations.