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www.fwbo-files.com]
The author was in a group (Friends of the Western Buddhist Order) which was structured differently from a Large Group Awareness Training (LGAT), neverthless, some persons who have been through an LGAT may find this essay a helpful resource.
Read it for yourself and see if it rings any bells.
The entire article is worth attention--but two sections may be pertinent:
'Outline of a Cult Persuasion Process - Bi-polar Mind Control '
And the section
'Leaving a Cult: Disability Arising from Cult Involvement '