Is it normal that my toe hair falls off when I fly on airplanes?

You should take a sample of the hair, perhaps you were exposed to high amounts of methane radiation, and are struggling with Acute Synopsis, which states that when exposed to high altitudes at high speeds, your toe hairs begin to shed. On the other hand, your "hairs" could just be thin parasites living off your toes, and when they are exposed to high speeds and high altitudes, they have deadly strokes, and die. It could be some sort of infection caused by dipping your toes in suspicious liquid. I recommend an immediate amputation of your toes, to ensure the infection does not spread.