Headache
Persistent headaches can plague those with low blood sodium, ranging from dull to severe. These headaches arise from the body’s attempt to adjust to the sodium imbalance, potentially causing blood vessels to dilate or swell, which in turn can trigger pain signals in the brain. [3]
Fatigue or Low Energy
A pervasive sense of tiredness often accompanies hyponatremia, making even well-rested individuals feel drained. The body’s energy production is intricately linked to sodium levels. When these levels are off, it affects cellular processes and the overall energy metabolism, resulting in deep-seated fatigue that doesn’t improve with rest.