Foreign accent syndrome:

a medical condition in which patients develop speech patterns that are perceived as a foreign accent[1] that is different from their native accent, without having acquired it in the perceived accent’s place of origin.

Foreign accent syndrome usually results from a stroke,[1] but can also develop from head trauma,[1] migraines[2] or developmental problems.[3] The condition might occur due to lesions in the speech production network of the brain, or may also be considered a neuropsychiatric condition.[4] The condition was first reported in 1907,[5] and between 1941 and 2009 there were 62 recorded cases.

Here’s to becoming number 63!