What are the signs/symptoms of an electrolyte imbalance?

Various: Look first for weakness, then confusion. In the hospital, very sick people are monitored and sodium, potassium, and acid-based are controlled well. Outside, we see this in people abusing diuretics, overdoing drinking water, folks with renal and/or adrenal disease, and athletes who overdo things in the heat. Symptoms and signs are seldom "textbook".

Agree with Dr. F: If you are ambulatory without serious underlying illness, it is unlikely that you have electrolyte imbalance.