RH shares characteristic symptoms with mild hypoglycemia (low blood sugar), which stem from the activation of the autonomic nervous system and may include the following symptoms: heart palpitations, pale skin, tremors, high blood pressure, anxiety, perspiration, hunger, nausea, and/or the sensation of “pins and needles”.[1][2]
As blood glucose levels dip below the concentrations needed to power vital organs (50 mg/dL), vision disturbances, cognitive changes, mood changes, lightheadedness, fatigue, headache, and seizures may occur.[3][4][2]