A serious mental health condition characterized by persistent and intense feelings of sadness, hopelessness, and a loss of interest in activities once enjoyed -- Brave AI.
alexithymia
"the inability to recognize or describe one's own emotions" -- Google dictionary / While the condition is not well-known, it's estimated that 1 in 10 people has it -- healthline.
cancer
Cancer can be let go and processed out, but it requires surrender at great depth.