I don't think his headaches are related to this "close to being a chiari thing" because so many people in my family get these headaches and many of them were athletic when they were younger. Nobody in my family has hypotonia. My husband had a large family and none of them has hypotonia and they were all athletic and very intelligent. I did find others on the internet who were close to having a chiari but like my son, only had a few mild symptoms. These people had also ruled out all other possible causes.
I just think it is really odd that we'd rule out the major symptom of chiari as being related but then use it as an explanation for what would be a less common set of symptoms.
And, really it is impossible to say that anyone ruled out "all other possible causes" for hypotonia because it is a very vague symptom that could be causes by hundreds of different possible conditions.
