Answer:
Obsessive-compulsive disorder
Step-by-step explanation:
Based on the scenario being described within the question it can be said that Daniel's behaviors are most symptomatic of Obsessive-compulsive disorder. This disorder, also known as OCD, is a disorder that is characterized by having unreasonable thoughts and fears that lead to becoming recurring obsessive and compulsive behaviors. Usually regarding something irrational such as Daniel is experiencing.