One can possibly find the elements of buddha within the Christian faith. God created all things good... and mindfulness and peace and all those things are found within the Holy Bible.
If you truly think it's your disorder causing your intermittent disruption of faith, then stick with the Presbyterian church even when unsure... don't stop doing what you know to be right, when you aren't sure. Don't doubt in the dark what you knew to be true in the light.
Reach out to others in the church at that time, and let them carry you..and maybe show you ways to keep the episodes from removing you so far away? TC