The phrase "inner turmoil" refers to a feeling of conflict or disturbance that exists within a person's mind or emotions. It represents a state of being unsettled, anxious, or troubled on the inside. Full definition
I would argue that while, being a thoughtful person is truly an important part of the human experience, putting others before our own spiritual needs creates inner turmoil and perhaps even resentment. (mindbodygreen.com)
I can't remember the last time that a decision caused so much inner turmoil for me. (paperglueetc.wordpress.com)