Stroke
According to Henry W. Wright
In the “Strokes” section, Wright points to self-rejection, bitterness towards oneself and self-hatred. In his broader teaching on blood vessels, he discusses anger, rage, hostility and deep bitterness separately.
Possible spiritual roots
Self-rejection.
Bitterness towards oneself and self-hatred deepen the conflict directed against oneself.
A negative attitude towards oneself becomes an enduring way of relating to oneself.
Wright links this profile to blocked or narrowed blood vessels; in his description of stroke, he indicates that restricted blood flow or bleeding can deprive part of the brain of its blood supply.
Spiritual response
Reject self-rejection, bitterness towards oneself and self-hatred; receive God's love, forgiveness and a sense of worth; if anger or bitterness towards others is separately present, forgive and give them to God; pray for peace and healing.
Sources
Henry W. Wright — A More Excellent Way (2009, English); topic: Stroke
A More Excellent Way — https://resources.beinhealth.com/products/amew
The 8 Rs to Freedom — https://www.beinhealth.com/8-rs-to-freedom/