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.
List your comments or any other symptoms you think may be caused by OCD. If you checked any of the above boxes, you could be one of the more than five million Americans who suffer from Obsessive-Compulsive Disorder (OCD). This list does not include every possible manifestation of the disorder.