I got a copy of my most recent audiogram today. I generally have no problem understanding them but the one I got today at ‘CNM’ written on it at three different frequecies in both ears. This has never been written on one of my audiograms before. When I looked it up I was able to find that it means ‘Could Not Mask’ but I am not sure what that means in relation to my hearing, the audiogram, or anything else. Could someone please explan this to me?