"One never notices what has been done; one can only see what remains to be done" - Marie Curie
They always catch you at the wrong moment, when you are taking that little break just to check your phone, your mail, etc. The focus should be what you have done and what you will do, but sometimes it seems that that is never really seen.
So what do you do? Documenting your tasks doesn't seem to be the answer? What else? That I don't know the answer to, but please feel free to share your thoughts if you do have some suggestions.
I believe what you can do is manage the perceptions on as what you are doing and what you've seen to be doing is important. Hopefully that's enough and you can still have those short little breaks in-between your busy schedules!