HRC has been coughing, falling, spazzing out for a long time. What was the excuse before pneumonia?
On the day of the collapse, we heard that she "overheated" and was "dehydrated". Days before that, it was "pollen". Before that, she was allergic (cough cough) to Trump.
Before that, Freepers said it was due to hairballs. I go with the Freeps.