this is for those who find themselves short of breath and think they will not be able to breathe.I had this sort of feeling and it was scary and horrible.
1. reassurance: You will not die! although the feeling might be like it, your body will stop the problem and restore your breathing. so Stop whatever you are doing and watch this video:
The second video is when you have run into acute shortness of breath and find you have somehow lost control of your breathing. This is an excellent video to recover your breath fairly fast.