Low sodium levels, or hyponatremia, can lead to lethargy, confusion, fatigue, and other symptoms. Treating the underlying cause may help. As the condition worsens, individuals may experience ...

Iron deficiency can cause several symptoms, including fatigue, headaches, and brittle nails. Spotting these signs early on ...

The same is true for mood related symptoms, such as feeling irritable or sad. This is why it's important to know the mental warning signs of low blood sugar. They don't go away. Some mild symptoms ...

Regardless of the cause, symptoms ... of low levels of ADH or, less commonly, from resistance to ADH. ADH is responsible for telling the kidneys to hold on to water to keep the balance of sodium ...