Mg- you poor love, its the little things that build on you and make you nuts i think...
i too cant have a glass of water without doing a "baby vomit" and have been having problems as soon as a get into bed at night... ive been using Eno... you know the stuff you add to water that u stir and stir and it goes fizzy and then you chug it down...
hope you are feeling merry soon.