only a MRI will tell you if it is Chiari . if it is you need to see a Expert in Chiari . they are all over the US
Rozia is right , he needs an MRI, but find a chiari specialist.They may also want a Cine MRI...flow study.
I was told that I did not need to worry because of my age the chiari would not be a problem to me.-I have also been told I have raynauds-tarsel tunnel,IBS,hiatal hernia,,,and on it goes.I do get the tingling, numbness in my hand and legs.the headacches that radiate from the neck and back of the head.
Please check the ASAP site for more info and dr info and the chiari institute for info as well. I do not know what area u r in, so I don't know if any of the drs listed will be near u.
Good luck
Godspeed
"selma"