Some people (say, Dr. Josh Lichtman) have tens of thousands of red notifications on their phones. Others (say, host Anna David) can't have one without needing to immediately eliminate it. What does it mean for Anna (and the listener who wrote in with this issue)? Is it a simple case of OCD? Or does it mean someone has OCD tendencies but not OCD? And what's the difference between those two things anyway? Psychiatrist Dr. Josh Lichtman is on hand to sort it all out.