Hello I have hone through your question and understand your concern. Symptoms of Electrolyte Imbalance shows up as fatigue post or during Diarrhea. Electrolytes are minerals in the body that regulate many body functions, such as nerve and muscle function and bone development. They also maintain normal heartbeat, blood pressure and fluid balance. Calcium, chloride, potassium, magnesium and sodium are all electrolytes. During prolonged fluid loss, which occurs during bouts of diarrhea, these electrolytes may be found in higher or lower levels than normal and cause a variety of symptoms. You may experience muscle spasms, weakness, twitching, numbness, confusion or lethargy. If your electrolyte imbalance is not corrected, it could lead to bone disorders, changes in blood pressure, nervous system disorders, seizures or irregular heartbeat. This can be managed at homw using ORS sachet avaliable over the counter at drug,prepare the ORS fluid according to the instructions given on it and take liberally for a day or two. Follow up with your treating doctor if fatigue increases.