Non-refundable ticket changes will cost you. As of 2013, Delta charges $150 for changes to domestic tickets and $250 for international tickets. If you booked your Delta flight through a travel agent or an online agency, you will be charged an additional $50 to make any changes to your ticket.
In the U.S., approximately 3.3 million people have OCD, of which you have 0.3 to 1% of pediatric population and 2% of adult population. So about 1 out of 200 adults have OCD and twice as many have had OCD at 1 point or another in their life.
Medication can help reduce OCD symptoms. OCD is a Serious Illness. Obsessive-compulsive disorder (OCD) can be a severe and disabling illness. According to the World Health Organization, OCD is a major cause of disability worldwide, with a total cost in the US estimated at more than $8 billion annually. People with OCD usually spend years suffering before beginning effective treatment.