Recently I have been quite heavily drinking beer, and noticed a strange effect: apparently an addiction developed but not to alcohol but to CO2.
Basically, now I cannot satisfy my thristyness with non-carbonated drinks, such as tap water, tea and milk.
Today I felt thristyness all the day despite drinking a lot of milk products and tap water. All the day I was drinking and pissing, but still was thristy. Finally, after 4th glass of tap water in a row, without any hope to combat my thristyness I went to a store and took a bottle of carbonated mineral water.
Instantly when I started drinking it my eyes filled with tears of satisfaction and the thristyness went away.
So, I suspect I developed some kind of dependence on CO2 dissolved in water.