I didn't experience a "high" but it was very validating. After years of thinking I was the crazy one because I just didn't get it and thinking I must lack faith or not have studied hard enough or a hundred excuses why I was unhappy with the "truth" when everyone was so joyful about paradise... It was kind of like ohhhhhhh I was right all along and I should have trusted my instincts. But imagine being the lone dissenter among your family and friends. Every single person close to you believes whole heartedly and you're left scratching your head. It makes you seriously self-doubt.
Honesty with just a couple of things that I found out weren't true...that was enough. No more digging was needed. I didn't need to delve into old Watchtowers or books just to see how wrong it was. That was just overkill for me at that point.