The Shock Wave

On April 29th, 2034, a series of shock waves hit the earth. Then weird stuff started happening. People started randomly dying due to causes not possible in the victims' circumstances. Drowning whilst in the desert. Choking on air. Bleeding out after not even coming close to anything sharp. People seemed to just drop dead-no explanation. No one sees anything. It seems to just be inside the victim's head. But here's the weirdest part: all of the victims died on their birthday. Why on their birthday, no one knows.

But one person has found one critical clue to solve this mystery;

Every person's cause of death has been the thing they're most afraid of.