What could cause bloating from drinking water?

Hi,

Another post from me on bloating.

What could possibly cause bloating from drinking water?
Been fasting all day, the first thing to enter my mouth was a litre of room temperature salted water and this caused me to bloat massively??

It shouldn't irritate the stomach lining, it shouldn't produce gas.

Maybe it causes the previous contents of the small intestine to move around/digest further and produce gas?

Once again any help much appreciated. Tweet