Is It Normal To Experience Shortness Of Breath And Rib Pain After Quitting Smoking More Than A Month Ago?

Hi, I’m a bit worried about some effects I’m having after quitting smoking around 40 days ago. Since quitting I have experienced shortness of breath and pains in what feels like the bottom ribs and sometimes pain in lungs. But otherwise overall breathing seems better. The rib pain feels like if you hit your elbow on something, but milder.