I'm not sure what a normal response is to finding out you were in a cult. For myself I would say I feel exactly like the opening post. Not sure if that's normal but I agree with you.
cappytan- if you're exploring Buddhism may I recommend the book The Good Heart, A Buddhist Perspective On The Teachings Of Jesus by the Dalai Lama. it really helped me grasp some of the teachings of Buddhism, and is a very good read.