One minute I could have a happy moment next be really unhappy why?

You might want to consult a mental health professional if you are feeling intense mood swings as this is a characteristic of several mood disorders, most notably Bipolar Disorder.

Because you can’t separate between a person and a feeling. They are unity and will always be related with one another. That is completely normal. The question should not be “why” but “what”. What are you going to do about it? The first step is to realize that it’s completely normal to feel unhappy, does not mean you were less of being a person. Life do always have their up and downs. And remember that nothing is permanent. Your happiness couldn’t possibly be there all the time, as well as your sorrow. You are gonna be fine. And if you are not, you know I’m always here, right?

Emotions are hard to understand but easy to trigger. There are many things that are embedded in us such as past experiences, insecurities, fears, which are suppressed within us and only come out upon being triggered. Triggers are not easy to identify but can be felt by a sudden change in emotion, as the one described in this prompt. Triggers can be overbearing as the route of the new felt unpleasant emotion is hard to identify, potentially resulting in further discomfort due to a rise in anxiety. When faced with feelings like this it is important to reflect on your emotions and dissect the situation, to try to identify what has triggered you.