Tournament Rules Question(Blinds):

I have a question concerning the end stage of a tournament when three players are left. The button(myself) goes all-in and the SB calls, BB folds. I lose. Does the deal shift to the SB who then becomes the SB/Button and then does the BB become the BB once again? This seems a litte unfair if the blinds are large. What is the correct sequence of blinds in this situation?