You have a type of phonophobia and
hyper-sensitivity to sound that makes you anxious and fearful to ever use your power. Even though time and evidence have proven it unlikely, your irrational fear of accidentally detonating something has driven you to wear protective ear-muffs and a
blast suit every waking moment of your life.
The power to rapidly grow and mentally-control the hair on your head, use it to grip things, tie/trip enemies, etc., and not suffer pain or weakening when it gets cut, pulled, or tangled.