Melancholia (from Greek μελαγχολία - melagcholia[1], also called lugubriousness, moroseness, or wistfulness), in contemporary usage, is a mood disorder of non-specific depression, characterized by low levels of enthusiasm and eagerness for activity. In a modern context, "melancholy" applies only to the mental or emotional symptoms of depression or despondency; historically, "melancholia" could be physical as well as mental, and melancholic conditions were classified as such by their common cause rather than by their properties. Similarly, melancholia in ancient usage also encompassed mental disorders which would later be differentiated as schizophrenias or bipolar disorders.
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Seems like I fall more into the melancholia area than bi-polar.