Headsqueeze is right -- a peak flow meter, once you've gotten good at using it, is absolutely the best information you can take to a clinician to help them understand what is going on with your breathing under a variety of conditions.
"Bronchitis" is generally diagnosed when an otherwise healthy young person comes in with a chronic cough, maybe some chest tightness, some mild shortness of breath, no fever, a normal x-ray, and normal lab work. The problem is that you can find the exact same constellation of symptoms in someone with asthma. Not all asthmatics wheeze -- I don't. Some cough instead, and it can take some time before an astute clinician twigs to the fact that the problem is not infectious, but inflammatory.
A steroid inhaler is considered the first-line intervention for moderate asthma in adult patients. I would use it as prescribed and monitor your peak flows before and after exercise. That would be very good information for a diving-savvy MD to help you assess the risks involved in diving with your particular symptoms.
"Bronchitis" is generally diagnosed when an otherwise healthy young person comes in with a chronic cough, maybe some chest tightness, some mild shortness of breath, no fever, a normal x-ray, and normal lab work. The problem is that you can find the exact same constellation of symptoms in someone with asthma. Not all asthmatics wheeze -- I don't. Some cough instead, and it can take some time before an astute clinician twigs to the fact that the problem is not infectious, but inflammatory.
A steroid inhaler is considered the first-line intervention for moderate asthma in adult patients. I would use it as prescribed and monitor your peak flows before and after exercise. That would be very good information for a diving-savvy MD to help you assess the risks involved in diving with your particular symptoms.