for two and a half days, when i breath in i felt an uncomfortable, slightly painful feeling in the upper chest, that ultimately made it a little complicated to completely breath. When i went for a second deep breath the slight pain/ache would go away. Then i would breathe softly, then proceed to breathing deeply agin, an the ache would return. Not it has slightly resided and there is a small bony lump in the middle of my chest below my collar bone, no pain felt.
Thanks for asking your question completely understand your problem catchy breath or pain during inspiration or deep inspiration causing a pinpoint sharp pain can be due to pleural effusion or sometimes pleuritic, but this is not necessary. This can also be due to a simple muscle pull. But if you're feeling a lump below collar bone u should get a chest X-ray done and take advise from a pulmonologist to rule out any access, or other causethanksif you have more questions feel free to ask may god bless you with good health