Here's a brief (and disturbing) compilation video of Heidi Baker when she was the special guest speaker at the Brownsville Assembly of God for a conference called Awake Deborah in 2003; the original video is two hours long:
Heidi tells somebody in the noisy, confused and writhing crowd "I know it hurts, it's holy though, don't be afraid..." She also asks God to "incapacitate" people.
As Heidi is trying to impart something to Guatemala she is overcome by convulsions and says "holy sh*t, I'll come back..."
Here's that part of the original video:
Dr. Michael Brown is a big defender of Heidi Baker, so you can be assured that she's legitimate!
Thanks to Is Not Satire for bringing this to our attention!