I have a feeling OP has been staring at the air bubble in his needle for a full week now, and I can imagine he hasn't slept or showered or socialized whatsoever since then and he is slowly going crazy, just staring at the needle trying to figure out what to do with the air bubble inside of it.
His eyes are bloodshot red, and he is dying of thirst and hunger, but he just can't stop staring at the needle with the air bubble in it. Like socrates was known to just stand in his bare feet in the middle of the market place in the dead of winter for a week at a time when he had a deep thought, I bet OP is doing the same in his bedroom, staring at the needle with the air bubble, deep in thought.