This is often referred to as just right OCD or Tourettic OCD (TOCD).
The behaviors are then carried out to relieve these uncomfortable sensations.
This buildup of tension is relieved by tic expression, much like scratching an itch.
BSIP / UIG / Getty Images
The upshot: TOCD or just right OCD symptoms seem to be a possible intertwining of the two disorders.
Such distinction, however, may be important for clinical decision-making.
TOCD can be more challenging to treat than classic OCD.