Hi Norty and thanks for sharing your recent experience. We hear you and understand how an acute episode can suddenly emerge, seemingly from nowhere. When it does, as you described, you are best off doing what you did, namely - using your rescue inhaler. No doubt by using it, you prevented the flare-up from getting worse! No reason to second guess your action - you did the right thing!
Keep up the good work!
Leon (site moderator)