Sorry...been writhing in agony from an extracted wisdom tooth for the past week and completely missed this. If they are unusually small, he may have something called "Slit Ventricle Syndrome," which involves excruciating headaches and can act a lot like shunt failure. I don't doubt that's it, now that I have seen this. Poor kid... Even slight constriction in vent size can make pressure excruciating. Please pound the docs on his behalf for any answers you can get on ways to relieve his symptoms.


Good luck...

LIZARD