I have over multiple posts written about how the Zeigarnik effect helps us. While there might be detractors to this theory, I know something like this exists because my brain keeps me alert on things that I need to get done.
While my brain does not remember all the things that I need to get done at a time, it does ensure that it keeps sending me the alerts if I am missing something.
On the other hand this effect actually keeps prompting you with feelings, for all the unfinished tasks, and eats up a lot of energy.The feeling of overwhelm also could be sourced to this phenomenon in my belief (no scientific proof of this).
You may have also had an experience like this. Whenever I go on a vacation or even for a two day break, for the first day or so, I am always having a feeling that there was unfinished business. I keep trying to rack my brain to find the source of the feeling, it dodges me, but the nagging continues. This nagging feeling makes me more irritable also.
This could also happen because the mind is pre-occupied with a lot of things. If you have a clear mind then, maybe you will get a signal on the exact item that the brain is pointing you towards.
II have found that a better way to handle the situation is to use the focus finder method of isolating yourself for 50 minutes ,which Dean Jackson has (You can search the video on YouTube) and dump down everything going on in your mind, on to a piece of paper. (This method is so good that after I do the brain dump, my mind gets so relaxed that I start feeling sleepy) This way the issues of nagging feelings can be reduced considerably. One day before you go out, just ensure you have ticked-off all the items on the list and you can have a decent break.
Till next time then.