The behavior you described, where a person keeps repeating certain thoughts in their mind over and over again until it feels "done," could be indicative of a mental health condition known as Obsessive-Compulsive Disorder (OCD).
OCD is characterized by intrusive, unwanted, and distressing thoughts, images, or urges (obsessions) that lead to repetitive behaviors or mental acts (compulsions) aimed at reducing the distress caused by the obsessions. The compulsions are often performed in a rigid, ritualistic manner, and the individual feels compelled to repeat them until they feel a sense of relief or a reduction in anxiety.
It's important to note that occasional repetitive thoughts are a normal part of the human experience, but when these thoughts and behaviors become excessive, time-consuming, and significantly interfere with daily life and functioning, it may be a sign of OCD or another mental health issue.
If you or someone you know is experiencing these symptoms, it's essential to seek professional help from a mental health provider. A qualified mental health professional can conduct an evaluation, provide a diagnosis if necessary, and recommend appropriate treatment options, such as cognitive-behavioral therapy (CBT) or medication, to manage OCD symptoms effectively. Early intervention can lead to better outcomes and improved quality of life.