>>12097461Ghrelin only signals your GI tract is ready to accept more food, it doesn't trigger hunger as such. Low ghrelin + hunger leads to feeling too full to eat yet hungry regardless.
You lack some of the top row transition metal elements. Copper, which is needed to release energy; chromium, deficiency of which for some reason causes obesity; manganese, deficiency of which causes diabetes (possibly combined with chromium) and central obesity. Too much zinc and iron deplete the above.