If he was crying all the time, his other eye would be teared up and you would hear him sniffling, smart one.
Obito is the crybaby. Kakashi's bonuseye actually does leak tears when there's no indication of other "crying behavior" at all. When Obito and Rin die, for example.
EDIT: If YOU can hear things through a manga you should see some sort of specialist. Doctor sort of person, you know.
EDIT EDIT: In the words of a wise, sort of janitorish person when discovering a naked man in the rubble of his crushed warehouse, "Kid, you got a condition."
EDIT EDIT EDIT: Thanks for the compliment.
EDIT EDIT EDIT EDIT: The EDIT EDIT EDIT was actually added at the same time as the EDIT EDIT but it was a complely different topic so...
EDIT EDIT EDIT EDIT EDIT: Spellcheck and detailing of my point.
EDIT EDIT EDIT EDIT EDIT EDIT: No, I don't have OCD.