@carlosfandango knows a lot about health related stuff. Maybe he'll have an answer. 

Natalia

Very strange. Do you typically drink a lot of water during the day? 

siggy47

Umbilical=belly button. It must have some science behind it. My ancestors were great doctors of Ayurveda. 

My other used to put a little olive or mustard oil on my umbilical when I was a kid. She says this helps fight out dryness of skin and throat. It works.

Coinsreporter

That's a great question. There are online many bottles that have some filters included, you usually also find it in outdoor stores. 

it's probably the quality of water you drink. Did you try adding some minerals to the water or gray/pink salt? I also concern some time and always bothered and concerned of drinking bottled ans/or tap water... I started looking at what bottled water contained and tried to avoid those with fluoride, also did a test of the local tap water, until I finally installed a water system to purify it.


Might be vitamin B deficiency. You can try drinking coconut water and honey water. 

suraz

https://en.wikipedia.org/wiki/Aquarius_(drink)

I use to drink this after (not during) a lot of effort walking the mountains.
It can give fast back to your body all the minerals and salts you eliminate with sweating.

Is not good to drink it as a daily refreshment, but only AFTER you've done an intense sport or effort. It will cut quickly that sensation of "I cannot drink enough water" that is the result of low salt minerals in your body.

you need minerals you lost during an intense dry period or a lot of effort.
Try to drink some Aquarius