Hi Doc.
My son aged 10, was with me for hair cut ,and was enjoying and talking and was chatting around suddenly asked for water and winth in time span of 3-4 min his lips turned white and lied down and wanted to sleep .. not even willing to talk... I rushed and gave him water with full adult dose of elcetrolit in glass of water.. he sipped one glass and in span of 5 min .. he was perfect and playing.

this is 2nd incedence in last 3 months.
please suggest.