Dukkha, a name derived from Buddhist philosophy. In Wikpedia Dukkha is reported as "suggestive of an underlying sense of 'unsatisfactoriness' or 'unease' that must ultimately mar even our experience of happiness...disquietude as in the condition of being disturbed...Accordingly, dukkha can refer to various unpleasant experiences in varying degrees. It can range anywhere from discomfort to suffering." (Wikpedia).