I have severe bronchitis--almost 48 hours of extreme coughing so bad it feels like I was coughing up a lung (or both) and have done 1000s of situps. Now, when I cough, I have to hold in an area of my abdomen that is most painful so that it doesn't push out, which is more painful, if that makes sense. It is midway between my belly button and breast and slightly to the right of center. I know there is extreme muscle strain. Is that likely all it is, or could it be something more concerning?