In your first example, I suspect there was probably other things present you weren't made aware of. Currently the requirements in Canada include (only copy those relevant to your example).
-have a serious and incurable illness, disease or disability (excluding a mental illness until March 17, 2027)
-be in an advanced state of irreversible decline in capability
-have enduring and intolerable physical or psychological suffering that cannot be alleviated under conditions the person considers acceptable