What is the ruling on leaving very small particles scattered on the floor or house carpet, with doubt as to whether they are dirt or food, and does the principle of "certainty is not removed by doubt" apply to them to avoid hardship and embarrassment?

The questioner is advised to fear Allah and to shun obsessive thoughts by ignoring their causes and turning away from them, and by occupying oneself with the remembrance of Allah, reciting the Quran, and supplicating. He is also advised to occupy himself with housework or his job. It is mentioned that difficulty brings ease, and there is no harm in leaving small crumbs of food that are of no benefit, because they are not food but rather dirt, and due to the hardship and difficulty involved in tracking them down.