Some degree of introspection on emotions is good. It can help you assess what an emotion is coming from. Usually signal.
But like with anything too much introspection, can cause you to analyze noise instead of signal.
Sometimes emotions don’t mean anything significant about your life. For example, women have periods every month. During this period they can feel significantly sadder and more angry. Not because of something they’re doing but because of pure happenstance.
Related [[Signal vs. noise]]