Now that you have a clearer answer to what is emotional health, explore and experience more emotional health and wellbeing. Cultivate your emotional wellness in a kind and gentle way. This exercise cultivates a good feeling. It's an exercise in self love. Be open with your self. Take a few deep abdominal breaths.
Your question is badly worded. A person IN LOVE with themselves is a narcissist. But everyone should love themselves. The difference is the level of attention one gives to oneself. Someone who loves themselves is a balanced person. A person in love with themselves is egotistical and cares for themselves above others.
Love is a variety of different emotional and mental states, typically strongly and positively experienced, that ranges from deepest interpersonal affection to simple pleasure. An example of this range of meanings is that the love of a mother differs from the love of a spouse differs from the love of food. Most commonly, love refers to an emotion of a strong attraction and personal attachment.