### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a pain in the center of my chest, slightly above my breasts but below my collar bone.  Its hurts really bad to inhale or exhale deeply, so I am shallow breathing.  It also hurts to lower my head (chin to chest), bend over or turn side to side.  The pain started last night for no apparent reason, and when I woke up this morning it was still there with no improvement.  I took (2) extra strength tylenol this morning with no results.  What could be wrong?  It almost feels like a muscle, but then other times not.

### output:

Hi, Dear,Thanks for your query to Chat Doctor. Studied your query in full depth of its details. Reviewed it in context of your health concerns. Based on the facts of your query, You with shallow breathing with central Chest Pain-problem, seems to suffer from-Costo-chon Chat Doctor. Unforeseen twist may have caused this. Being central chest, creates doubts in chest pain also, which needs to be ruled out-by ECG and physicians opinion. The Tylenol double strength failed to give relief, creats doubts of the Anterior Mediastinal chronic infective pathology or doubts of -Pleuritic pains. X-ray Chest and Chest CT would fix this ambiguity and would pinpoint the exact cause of this pain in central chest. Considering the facts of your query, Mostly it seems to be from Chest Cage or from Anterior Mediastinitis. Second Opinion from Chest specialist and physician would reduce this ambiguity by proper clinical examination and evaluation. Hope this reply would satisfy you and would help you to plan further treatment with your doctor there. Welcome any further query in this regard, which would be replied in next session. Will appreciate YOU, to write your excellent review feedback comments of this service experience, to help the needy patient visitors like YOU, at Chat Doctor services. Good Day!! 