TW!!! Does anyone ever have a clarity second? Where you suddenly see yourself how others probably see you?

For example, on a normal day I would still see myself as needing to loose but every now and again (maybe once a month) i'll catch a glimpse of myself when I'm not meaning to and suddenly see my legs or face thinner than I realised... Never thin, just closer to thin... Is this just me or do you all see this sometimes??