hey Gavins mom
my name is Rachel and i know what your son is going through and no doctors will comment on what he is facingbecause they do not know. if it is not in their books they don't know.
anyway YES i belive teh weather does have an effect on the shut. I get really bad headaches and or my insion hurts when the weather changes. I have a neice that has had a shunt since 1 week old and her mom says she seems to be more fussy with weather changes too.
I have dealt with shunt problem since 1989 so if I can help you out in any way let me know
rachel