I am a 21 year old who has been smoking since i was 18, below my adams apple near my voicebox i feel something small and squishy, should i be worried?

Smoking: Yes. Of course. Why are you not worried even if you do not have a physical problem?

Ills of smoking.: I'll grant you that you haven't been smoking too long, but you should get that checked out anyway,,perhaps,with an ultrasound or CT scan. And quit smoking. Now. Go ahead.

Get it checked: Get it checked and try to stop smoking before it is too late