Very thirsty when I replace water filter

[sprouting]

Hello,

I seem to go through cycles of being very thirsty and water does not quench my thirst at all. It seems to be particularly bad at night and I will always have a bottle of water next to my bed. The more I drink the thirstier I seem to get.

I know there are other posts on this topic but what I have noticed is when I put a new filter into my Brita water jug I get very very thirsty. I'm no expert - but this gives me the impression that the filter is lowering the ph and making it more acidic. However I add a pinch celtic sea salt to the water to try to aid the water absorption.

Can anyone help me out? I get so thirsty I can't sleep sometimes and get up in the morning feeling horrible.

Thanks!

[speltrong]

Here's a link to a medline article: http://www.nlm.nih.gov/medlineplus/ency/article/003085.htm