It's normal to sometimes feel thirsty, but it's not normal to constantly feel thirsty even when you're drinking a lot. See a GP to find out what's causing your excessive thirst.
Most of the time if you're feeling thirsty it's because you need to drink more fluids.
This can happen if you:
Drink more fluids and avoid alcohol or caffeine to see if it helps.
If you don't, you may be at risk of becoming dehydrated.
Symptoms of dehydration in adults and children include:
You may think you're thirsty when you actually have a dry mouth.
If it's a dry mouth, you may have: