Suffering is health-related when it is associated with illness or injury of any kind.
Suffering is serious when it cannot be relieved without medical intervention, and when it compromises physical, social, or emotional functioning.

Adapted from Knaul FM et al. Alleviating the access abyss in palliative care and pain relief - an imperative of universal health coverage: the Lancet Commission report. The Lancet. Internet. Accessed on October 25, 2018.