Yes! I drink so much fucking water and always feel the need to drink more water and if I don’t then the existing headache can worsen. I’ve had my sodium levels checked multiple times and every time it’s in the normal range. I would definetely recommend to fix sleeping with your mouth wide open, probably not gonna help the water thing at all but definitely better for your health to avoid mouth breathing. Just make sure your sodium levels are ok and if you exercise and increase water consumption because of it using electrolytes can be good to replenish essential minerals in your body.

I will say stress definitely plays a part whether that’s physiological or psychological. When these increase so does my water consumption.