I read (don't know if it's true or not) on a site that appeared to know a lot about Terri that when she was initially taken to the emergency room, the doctors noted a very stiff neck, possibly from trauma. It also stated she did not have a heart attack and given her age, it was highly unlikely low potassium would cause a heart attack. It said she had an EKG and blood tests and nothing indicated a heart attack, only heart arrythmia. I just wish they would allow a complete, thorough exam by qualified, unbiased doctors.
Didn't she have an eating disorder, ie anorexia?
This is probably what was being commented on.
http://www.terrisfight.org/documents/Humana%20Discharge%20Summary%20050990.pdf
As well, there are a ton of links to documents which can be found here:
http://www.hospicepatients.org/terri-schindler-schiavo-docs-links-page.html