What does it mean for a hyperaerated lung to press on the abdomen, is it dangerous for person to refuse an inhaler meant for an exercise induce asthma?

Air can't get out: With asthma, patients get "hyperareated lungs", meaning there is much air trapped in the lungs because the patients cannot easily breathe out the air. It is dangerous when there is way too much air trapped in the lungs. It is not dangerous when the asthma is mild, but sometimes the mild asthma can turn into dangerous asthma over a few hours. We use the same inhalers for different types of asthma.

Worrisome: The body cavities are divided into spaces & have only so much room. If your lungs are overinflated, they push down on the breathing muscle & impinge on the abdomen. I suspect your asthma is more than just "exercise" related. The frequency of sudden death among those with mild asthma has increased in the past 2 decades in spite of advances in treatment. If you don't respect it, you could be next.