Symptoms vary according to individuals' hydration level and sensitivity to the rate and/or magnitude of decline of their blood glucose concentration. A crash is usually felt within four hours of heavy carbohydrate consumption. Along with the symptoms of hypoglycemia, symptoms of<unk>  include: * double vision or blurry vision * unclear thinking * brain fog * insomnia * heart palpitation or fibrillation * fatigue * dizziness * light-headedness * sweating * headaches * depression * nervousness * muscle twitches * irritability * tremors * flushing * craving sweets * increased appetite * rhinitis * nausea, vomiting * panic attack * numbness/coldness in the extremities * confusion * irrationality * hot flashes * bad temper * paleness * anxiety * trouble talking * cold hands * disorientation * the need to sleep or 'crash' The majority of these symptoms, often correlated with feelings of hunger, mimic the effect of inadequate sugar intake as the biology of a crash is similar in itself to the body's response to low blood sugar levels following periods of glucose deficiency.
Reactive hypoglycemia
Hereditary fructose intolerance
Ketotic hypoglycemia
Insulinoma
Hyperinsulinemic hypoglycemia
Diabetic hypoglycemia
Idiopathic hypoglycemia
Stress hyperglycemia