I'm not an avid believer in Kundalini, but apparently it can be done wrong, and opened up while unprepared, which seems to lead to a vast number of symptoms:

"fear[24]
anxiety[24]
depersonalization[20]
intense positive or negative emotions[20]
spontaneous slowing or speeding of thoughts[20]
spontaneous trance states[24]
experiencing oneself as larger than the physical body[20]
experiences of paranormal consciousness[23]"

Maybe the people in the video who tried it did it wrong?