Sounds like it could be pleurisy?
Try looking at this websit http://www.webmd.com/a-to-z-guides/pleurisy-overview
Yes, because that actually is your sternum (your talking about upper chest area)
Yes, the liver is distal to the sternum. The sternum is located in the chest, while the liver is situated in the upper right quadrant of the abdomen.
The gallbladder is inferior and lateral to the sternum.
The sternum is the flat bone that the upper ribs are joined to.
The heart is located in the upper left side of the chest under the lower half of the sternum.
Sternum is the scientific term for the breastbone.
It is a gland just above the heart. It plays an important role in the development of the immune response to invasion of the body by pathogens.
The manubrium is a bone that forms the upper part of the sternum. Its main purpose is to provide attachment points for the clavicles and ribs, helping to support the structure of the chest and facilitating movements of the upper body.
Thymus is located anatomically in the anterior superior mediastinum, in front of the heart and behind the sternum.
Manubrium
The sternomanubrial junction is where the manubrium (top part of the sternum) meets the body (sternum). It plays a role in connecting the sternum to the clavicles and first rib. It is an important landmark in the chest for medical examinations and procedures.
The sternum is located at the top-centre of the chest, where the ribs come together, and can be felt quite easily by moving the hand downwards from the throat.Sternum is a Long Flat Bone shaped as "T", which is places on a chest otherwise it is called "Breast Bone"breast bone