talk and die syndrome
n.— «Doctors have suggested that Richardson suffered from something called “talk and die” syndrome, in which bleeding that occurs between the skull and brain stem is delayed. Patients seem fine after the trauma and may think there is nothing wrong. However, as the condition in their brain deteriorates they, too, deteriorate and their chances for survival decrease.» —“Actress Succumbs To Traumatic Brain Injury” by Heidi Turner LawyersandSettlements.com Mar. 19, 2009. (source: Double-Tongued Dictionary)