I don't think it is smart to devalue your human experience. When you say an emotion is "fake" you're denying the experience that it's giving you. When you start to equate any form of "happiness" to "mania/hypomania" you're preventing yourself from enjoying that moment. Over-thinking it isn't good, either. You should be able to recognize what is a phase and get help if necessarily...however that doesn't mean you need to seek help for every "symptom".

That is the crux of a person who has been diagnosed with a disorder.