What Causes Persistent Cough With Severe Pain In The Ribs?

Question : I had a upper respiratory infection about 10 days ago, and was coughing quite a bit. As a result my stomach was sore from coughing. I saw Dr 2 separate times, first got medication for cold, but I was kept up coughing at night on more tahn one occasion. I went back to Dr for the excessive continuous coughing, I just couldn't shake it. she gave me medication for it the last time,. the next day at work, I was coughing again, and I felt a kind of "crack" under my right ribs, kind of like I hear when I go to the chiropractor and he adjusts me. I immediately stopped coughing, in fact I dont think I coughed the rest of the day, but ever since then, it has been sore, and when I do cough, there is a sharp stabbing pain there. No pain sitting, walking etc, but when I do cough, right where my ribs end on my right side there is s sharp stabbing pain. ( thought initially may be a pulled muscle,)