Sorry but no I haven’t found anything yet that helps my breathing. Although I have been asthmatic for around 55 years, this breathlessness is different and very debilitating. I attended my local hospital last year and they diagnosed Bronchoectasis.
I also have severe Sleep Apnea.
Don’t know if there is any connection with PD yet. Going to have to re-visit my GP and discuss with my Neurologist when I next see her.
If I have any more info I'll post it on this site.