@mwmathis; @yaramarthe- Welcome to Mayo Clinic Connect. We are an online community of patients and caregivers helping each other who are experiencing the same thing. No one should feel alone on Connect.

Even if we do not necessarily feel like we are anxious I don't know of anyone who isn't right now. COVID-19 and this second wave have put us all on egde. Anxiety and dyspnea go hand in hand. They seem to fight like cats and dogs and is extremely frustrating because one feeds off of the other.

@mwmathis- If you are experiencing dyspnea after exercising it might be something called Exercise induced asthma. I have this too, but my breathing tests show that I do not have asthma. Go figure. Perhaps you have changed your breathing, or the heat went on in the room as temperatures outside have changed so rapidly recently.
I also hate to bring this up but age and maybe a little gained weight could trigger something called GERD and needs to be treated by a GI doctor. Have you experienced GERD at all?
https://www.mayoclinic.org/diseases-conditions/exercise-induced-asthma/symptoms-causes/syc-20372300
@yaramarthe- Heart problems can certainly cause dyspnea. It is one of the main causes. It must be terrifying on top of all your other symptoms. Yawning, I think, is a mysterious automatic body response to tiredness or stress. There can be many underlying things that cause it. Medicines including some antidepressants, antihistamines, and some sleep meds can cause excessive yawning. And everytime someone posts this I yawn! lol.

Here is some great information about excessive yawning:

It is an automatic body response to tiredness or stress. Less commonly, excessive yawning can also be a sign of an underlying health conditions.
https://www.medicalnewstoday.com/articles/324401
When is your appointment with you heart doctor? What tests is he going to do that you haven't had done as yet?