How the ingrained behaviours of family may clash with neurotype to provoke a chronic response in the body

How much do epigenetic components, mere accidents of circumstance, parenting styles, and other peoples expectations feed into chronic states of health, not least when you are autistic and have been entrained, all your life, to adhere to behaviours that fail to meet the preferences, abilities or sensitivities of your neurotype? Is chronic illness a form of demand avoidance that takes shape in the autistic body when it refuses to continue being ignored as before?