Ive read once on a forum, that a guy had experienced a buzzing shunt valve and it always puzzled me to think that a valve could 'buzz' as after all its just a piece of plastic.

I hit my head just over a week ago whilst in rolling over in bed, since ive woke up each morning with a headache.

Now get this, today each time i had ran either up or down the stairs, my shunt has made a quiet tinging, buzzing sound!!
At first i took no notice as i believed maybe its just a tinging in my ears, but each time ive ran, i get the same noise and it deffinately sounds like its coming from my shunt.

Has anyone experienced it?
in the 17 years ive had a shunt, never have i experienced any noise coming from it!!