Hi Brett... Thanks for the question. Though it could be anxiety
to start with but without background history it is difficult to comment. More inportant is not to miss important health signs. I see that you had H/O smoking
* ..years and the month or so h/o dull ache in upper chest which is followed by voice change and scrach in the throat. We should work you up more and if there is an associated weight loss
history or H/o insomnia
, h/o sweating, breathlessness you should get a CT chest done. Though Chest Xray is the first investigation we should do in this case but it is just like screening, you still have to go for CT chest with/ without contrast if anything is positive. I again want to reiterate that everything might be OK with you but at your age with limited background history you have given I would like to rule out anything which can harm you in longer run. Please seek clarification if anything is not clear. Do not ignore it...