Have you ever questioned your faith?

I have never had 'faith' in anything beyond the realm of the physical. When I was younger, I desperately wanted to believe in the supernatural (not God, but things such as reincarnation, 'time storms', telepathy). I was quite convinced about telepathy at one time, after reading some very interesting books on the subject. God has never interested me much at all, although I did always enjoy listening to sermons from the visiting minister of the local church on special occasions at primary school.