This is the first in a series of stories on losing faith.
Teresa MacBain has a secret, one she's terrified to reveal.
"I'm currently an active pastor and I'm also an atheist," she says. "I live a double life. I feel pretty good on Monday, but by Thursday — when Sunday's right around the corner — I start having stomachaches, headaches, just knowing that I got to stand up and say things that I no longer believe in and portray myself in a way that's totally false."