I would think nervousness is related to a specific event and would pass when the event is over. It can even be a positive event that makes you nervous. Anxiety for me is an underlying ugly and unsettling feeling that I just can’t shake. It may or may not be related to any particular event. I sometimes feel anxious about going to work for no other reason than because I’ve been carrying a heavy workload that is wearing me out or I’ve been dealing with difficult coworkers. I usually get nervous about giving a presentation but that passes when the presentation is over. Unless I feel embarrassed or upset over how the presentation went and then I’m anxious about it....