Isabel Granada's performance for her fans video taken at the conference emerged after her hospitalization.
The clip showed an energetic and happy Isabel singing "On the Wings of Love".
Arnel Cowley, Isabel's husband is also shocked as it is sudden according to him.
She only complained about a mild headache just before she collapsed.
Joseph Timothy recalled the moment before she fell into a coma.
He recalled she just sat down and fell asleep and then snored.