No you have not trodden on any toes. Seeing stress as a major cause is not so strange, but you need to include stress caused by eating the wrong food, that inhibits the production of feel-good neurotransmitters. You body is under stress - producing stress hormones - when you diet prevents you from manufacturing the right energy (from carbohydrates) to convert amino acids in food (proteins) into the right neuro-chemicals. When the brain is starved of glucose, it will trigger the release of stress hormones - adrenaline and cortisol - to convert Sugar stores in the body (glycogen) back into glucose (energy). But these same stress hormones gives you the illusion that "stress" is environmental instead a simple physical illness.
See: Psychological Projection and Hypoglycemia http://www.hypoglycemia.asn.au/2013/psychological-projection-and-hypoglycemia/