i have rheumatoid arthritis, had pericarditis in 2009 after child birth, my hearts been hurting. 6 months ago it was occasional, now its everyday starting in the afternoon and goes into the night. i have swelling in my legs. i have family history of congestive heart failure also. i have fatigue, dizziness, extreme joint pain, all these interfere with my daily household duties.
You could be having a persistent or recurring pericarditis, or you might be having inflammation in the chest wall, either muscular or Costco Chat Doctor.  Costco