Have any of your physicians considered Vocal Cord Dysfunction? It seems consistent with what you describe. It is when the muscles in your larynx don't work exactly right and can cause an obstruction, which then can cause wheezing, stridor (loud breathing when you inhale), shortness of breath, etc. And does not respond to steroids or typical asthma medications. Sometimes it can be mistaken for asthma and is usually something that gets thought of when the typical treatments for asthma don't work and other things are ruled out. It can also happen along with asthma--some people have both problems.
It's really hard to sort of catch this to definitely diagnose it--you have to be in the moment of having these breathing issues and have a doctor look down your throat with a scope to watch your vocal cords. But there are breathing exercises that may work--usually if you take a deep breath in with your nose, it will correct the obstruction, then you slowly exhale via pursed lipped breathing, and breathe with your abdomen--make sure your abdomen expands as you inhale...you get a better breath that way.
Just a thought. Gets frustrating when treatments are not working. Hope this is helpful... Good luck!!
Ventollin should only be used as a rescue inhaler. Taking it more than once a week is not good. If your using it on a regular basis that means your Asthma is not under control. Try telling your pulmonoligist to change your asthma medicine to get it under control. I use Symbicort and vent online only as needed. Wish you the best.
I use Ventolin. It works by relaxing muscles in the airways to improve breathing. Ventolin is used to treat bronchospasm (wheezing, shortness of breath) associated with reversible obstructive airway disease such as asthma.