Deep in Thought

Hospital visit went well for Jnr Jnr this morning; no visible signs of infection, but it does look rammy. I need to be a dressings nurse for a few weeks :)

Not the best afternoon for one reason and another. It's put me deep in thought.

What causes Jnr Jnr to be seemingly deep in thought here?
(CLUE: begins with T and ends in V)