Why does eating cause irritability, tiredness, and crying spells?

If you get these: Symptoms after eating, you need to inform your family doctor about this as there's a great chance that you have what is referred to as postprandial hypoglycemia. What this means is that after eating your blood sugar goes up followed by a rise in your insulin. Too much Insulin is released by your pancreas and it over shoots such that the blood sugar then tends to drop precipitously and trigger things like depression panic attacks, tearfulness, and palpitations.It can be diagnosed by a simple glucose tolerance test. The treatment is to use multiple small meals throughout the day so that you do not get any large Insulin peaks.If your doctor feels that you need a more complete workup by an endocrinologist to rule out a small Insulin secreting tumor of your pancreas which are overwhelmingly benign, then he or she could refer you to a endocrinologist.Best wishes and i hope you feel better soon.