I like the premise
What I liked:
Read the story now
The idea behind this story is intriguing. Someone who can bend time and change events? Great concept.
What I didn't like:
The pacing of the story is off. It seems the author rushed the ending. Would have served the story better to drag this out a bit - more discovery on what was causing the migraines, how this person was bending time, how they end up in the various positions to do so much good, etc. One moment he inadvertently changes events by pulling over because of his headache. Next thing we know, he knows how to "bend time" - the logical flow of events is missing. (Also, did he go back in time so far that he was taking his daughter to school when the beginning of the story only had his "bend" seven minutes to avoid the crash while he was running?)
This story has promise. I think the author could do some great things if they don't rush it. Take your time, let it flow, and watch your logical jumps between events.