Signs that you need to drink more water.
If you experience dry mouth, that's a sign that you should drink more water.

Dry mouth
If you experience dry mouth, that's a sign that you should drink more water.
Dark urine
Dark and strong-smelling urine is also considered a warning sign that you should increase your water intake.
Tired
Dehydration can lead to fatigue, so make sure you drink enough water every day.
Hungry
The feeling of thirst can be mistaken for hunger. You might think you're hungry, but in reality, your body is signaling that you need to drink water.
Dry skin
Skin needs plenty of water to maintain its moisture. Dry or flaky skin is a warning sign that you need to drink enough water.
Dizzy
Dehydration can make you feel dizzy and lightheaded. One of the main signs of dizziness due to dehydration is suddenly feeling lightheaded or faint when standing up too quickly.
Muscle contraction
Prolonged electrolyte imbalance can lead to muscle cramps or spasms during and after exercise due to dehydration.
Reduced skin elasticity
Skin elasticity decreases due to dehydration. If your skin is slow to return to normal after getting a bump, it's a sign that you need to drink more water.
Constipation
Dehydration causes the colon to try to retain water, making the stool hard and dry.
Hot
Sweat is primarily made of water. This means that when the body is dehydrated, it inhibits sweating and causes rapid overheating, making us more susceptible to heatstroke.
Migraine
Dehydration can lead to migraines. This could be a sign that you need to drink more water.
According to Dan Tri - NM


