I have very very mild asthma
I have been experiencing odd symptoms that do not feel asthmatic - I feel like I cannot breathe deeply enough - this is often connected with a need to evacuate my bowels - it lasts from 20 mins to an hour (some of it may well be panic) and leaves me feeling absolutely exhausted
Dr says there's no connections and gives me that look (you know the look like you're mad)
I am not generally anxious though have previously had panic attacks associate with a serious, potentially life-threatening neuro condition (I believe that is a normal human response though)