This might be the sign that you need a break. Whether it lasts for 5 seconds, a day or even a few days. It is our choice. But a break is needed at times.

Amongst our busy lives, it can be so easy to get caught up in worldly matters. When is the next train? When is the next exam? What is the next task to tick off? What is the next something?

Stop. Breathe in. Breathe out. You may need some time to really talk to yourself and question what you are doing. After this break, you may feel even more motivated and productive to start working. 

When should you stop? It is your choice. 

Maybe when you stop, you might get more motivation.