Well, what a simple question that is almost impossible to answer.
Bronch is very complex, and everybody with it is different. The area of the lungs which is damaged is different in everybody as is the extent of the damage and the problems which this causes.
Also the perception of how it feels is very subjective and everybody experiences it differently. I have had a lifetime of 'getting on with it' and have never been allowed, or allowed myself to dwell on it.
Having said all of that I do have signs when things aren't right. I have a lot of daily fluid, whether I have an exacerbation or not. If I have not done my chest clearance it builds up, I feel breathless and very uncomfortable so have to get rid of it - every day. the best thing of course is to do it before it feels like that.
If I have an exacerbation I get a heavy 'solid' pain in the lower part of my right lung where most of the damage is. Since I had an empyema two years ago I can get a sharp pain on the right hand side where the empyema was if I am lying down and breathe in quickly. This is where the pleural membranes are still sticking together. If I get a virus I have a sore pain and irritated cough at the top of my airways. Many healthy people experience viruses like that.
You may not recognise any of that because your bronch is different but I hope that you found it interesting.