D-Lyte Energy Drink Powder Orange Flavor 21g, 30 Sachets Maintain fluid balance. If you’re losing a lot of water, you’re probably losing a lot of sodium too. Symptoms of a sodium deficiency include muscle cramps, fatigue, dizziness, nausea, and inability to concentrate. Drinking too much fluid, especially plain water, can result to low sodium levels and negativity impact performance, especially during bouts of training.