self-generated vs impulsive

self-generated and impulsive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-generated	No	Yes	No	No
impulsive	No	Yes	No	No

self-generated (adjective)	impulsive (adjective)
happening or arising without apparent external cause	determined by chance or impulse or whim rather than by necessity or reason
originating from the self	having the power of driving or impelling
	characterized by undue haste and lack of thought or deliberation
	proceeding from natural feeling or impulse without external stimulus
	without forethought