Is this normal? I've been thinking maybe it's depression?
Sounds like "Emotional Shutdown". I experienced this when I determined that the WT system could not create victory in my life. I worked it hard for 8 years and just ended up emotionally shutdown, just turning the treadmill.
I think most ex JW's will concur that the organization as a whole has a mechanical, even robotic characteristic to it. Mechanical, robotic behavior is a characteristic common with those in prison. Find the Lord Jesus Christ and you'll find freedom.
2 Corinthians 3:1 (KJV)
17 ...where the Spirit of the Lord is, there is liberty [Freedom].