I shoulda known it was a bad idea...

  "I haven't eaten at McDonalds in at least a year now, and I should have stuck to that trend. Except that I have a canker sore and one of the best ways to hasten their healing is to drink a McDonald vanilla milkshake (something about the PH of it). Except that apparently they have gotten away from their all-soy non-dairy shake formula and back into on where milk is the primary ingredient.
  No wonder I've been experiencing all sorts of gut horrors for the past two hours. Meh, I hate my biology."