Understanding compassion fatigue from a buddhist point of view

For the last couple of years there has been growing research on so called compassion fatigue among social workers/therapists/social workers, and their likes. In short, compassion fatigue can be described as exhaustion and/or vicarious traumatization in different forms of healthcare/emotional labor. (https://en.wikipedia.org/wiki/Compassion_fatigue) . My question is - if and how - one can understand these phenomena based on buddhist dharma? As far as i understand there is no mentioning of these types of specific phenomena in the suttas. A few personal hypotheses is that compassion fatigue is the result of one or more of these factors: - an imbalance between the five indriyas/faculties and the five pancabalani/strengths, leading to - akusala padhana/unwholesome effort. - upadana, grasping for being overtly supportive at the expense of own health, or clinging to a self-view as a tireless helper. I realize this may seem counter to popular buddhist notions such as the brahmaviharas, for instance. I still can't help but wonder if this can explain compassion fatigue, or if there are other alternative interpretations based on a buddhist framework? (This is a sutta reference request)