The presence of obsessions or compulsions, or both, are what distinguishes obsessive-compulsive disorder from other conditions. The obsessions or compulsions cause marked distress, are time-consuming, and interfere with a person's normal functioning.
(1989) concluded that everyone excretes stinky compounds in their urine after eating asparagus, and the only variation is in ability to smell them. Other papers using chemical tests and carefully controlled smelling tests show that there is variation in excretion of sulfur compounds in urine after eating asparagus.
Everyone makes smelly urine from asparagus but only 22 percent of the population can smell it. Those who can will smell it in everyone else's. It only takes half a spear for my to smell. It's not unpleasant, just 'asparagus wee'.