Your mother's the practice manager! Why didn't you say? You'd better get organising some 'conditioning' for yourself- sitting in that waiting room until you get bored out of your mind- don't read, just watch the buzzer until you don't react when it goes off! Do it day after day. Get her to organise quick BP readings out of the medics. Nobody is going to wave a magic wand so you stop reacting like you do. You're going to have to put hours of 'your' own time in to sort out 'your' problem.