Headache
Many people experience headaches when they have not managed their daily water intake. Before taking medication or jumping to more serious conclusions, try drinking more water throughout the day to get rid of the headache. From this time forward, stay on top of hydration, since headaches are a symptom of dehydration.
Skin Has Lost Elasticity
Depending on where you live, heat can take a toll on skin, drying it out and zapping it of its elasticity. It is also a symptom of being constantly dehydrated. Also known as skin turgor, if you can pinch your skin and it stays tented for any degree of time, you might be experiencing dehydration, according to the National Institutes of Health.
Dizziness
The Mayo Clinic lists dizziness as a symptom of dehydration, too. Without enough fluids in the body, brain function can be compromised. This is especially a problem for young children and older adults. If you stand up and feel unsteady, consider whether you have had enough water recently.
Tearless Crying
In very young children, including non-newborn babies, crying without tears might be a sign of dehydration. Young kids can be very active. Add in the summer heat, sweat and time in the sun, and they lose more fluids than usual. Kids, especially, need to be encouraged to take in more fluids, preferably water.
Blood Pressure Drop
Dehydration can also cause blood pressure to drop, which might cause you to feel faint when you stand up.