I think the life examination thing is a symptom of its own; you can't just turn it off, it is/was helping you in your life in some way. If it is in your way not instead of helping, I would see a therapist, explore being "whole" instead of lopsided with just thinking? Thoughts are not actions, they help make up what actions to take; life is an active sport; we are being intellectual wall flowers at the dance of life when we do have too much thinking going on and not enough follow-through.