People grow internally all the time, but periodically they really feel it. When you've had a shift, the world looks different and what motivated you before is replaced by something better and cleaner. What you once tolerated, you will no longer. The people you spend time with are replaced by those who truly inspire you. A shift almost always feels good, but there can be some fallout, like sadness for letting go, resentment for the costs you had been incurring prior to the shift, etc.
People have maybe several shifts during a their lifetime.
They are turning points worth sharing. The Promise . Sometimes it helps to make a promise to your coach. I know I do to mine, particularly when I need to get something done that I don't fully trust myself to do on my own. Just tell your coach exactly what you want to do and when you promise to do it.