Hello and welcome to HealingWell. To answer your questions to your concerns - first of all remember you are newly dx and perhaps the breathlessness feeling causes your anxiety to rise which also causes you to feel short of breath.
This is just info for you so please keep in mind your Dr. is the expert in answering your questions. Severe asthma is a serious health concern that can lead to respiratory failure.
Breathlessness is something most of us experience, to some degree, on a regular basis; sweating it out at the gym, sprinting for a bus, lugging heavy shopping bags. Most of the time, it's completely normal.
Anxiety can contribute to breathlessness in multiple ways. Long-term stress and anxiety can impact physical health, and could be a factor in why you feel more breathless than usual, while panic attacks - an intense burst of anxiety - can lead to sudden rapid breathing and possible hyperventilation, often accompanied by chest pain, shaking, rapid heartbeat, dizziness and disorientation.
I would like to suggest you talk with your Dr. re developing a asthma action plan for you. Because asthma varies from person to person, you'll need to work with your doctor to develop a plan that's customized for you.
and Heart/Cardiovascular Disease. "She Stood in the Storm & When the Wind Did Not Blow Her Away, She Adjusted Her Sails."