Peter....it's excessive acid but doesn't cause heartburn so it's hard to recognise the symptoms. It causes nausea and weekness. I have it and now I have a ulcer.
standard A level chemistry exercise
pH 2 is a possible sensible pH for stomach and is the neg log base 10 of the H ion concentration - viz 1/100 mol/li
PP...I give up....I sometimes think that you add your posts simply for showing off your academic expertise, adding little or nothing to the content of the thread.
If you would like to copy and paste my disagreement of your accusation, then i might be able to help you....although I rather doubt it.