"WHEN was the last time you experienced this, Mr. Henry?" 

Dr. Smith asked Gideon beside me. 

In a span of twelve hours, we were back in LA.

The headache he experienced yesterday only lasted for ten minutes. After the doctor in Florida said that his headache was connected to his accident before, we decided to take a flight to LA. 

"It only happened twice after my last check-up with you."

I turned to him. This had happened to him in the past months? 

"The first one, five months ago. The second one was three months ago. I was both in Africa at that time. Both lasted only a few minutes...