Strange breathing issue?

I’ve had a strange breathing... thing for the past few weeks. Probably not Corona considering the duration and lack of fever or any other symptoms, but obviously I’m self isolating regardless. Would go to a doctor but... yeah can’t really unless I have a really good reason which is why I’m coming here first. 

My chest has the feeling as if I just went for a run in really cold air. Where it’s a bit hard to breathe and my chest sort of hurts as I breathe. I have a light cough but it’s not so much as a real uncontrollable cough as I cough consciously like I’m trying to clear my airways. When I take really deep inhale, there’s a very slight sound, a sort of scratchiness or just a sound like he air is being forced through a narrower passageway. Hasn’t really been getting worse just on and off for awhile. 

The other day I felt a bit better, decide to go for a light jog. Air was a bit cold but nothing serious. By the time I stopped running my lungs where BURNING and the pain didn’t fully go away for a few hours. And my nose bled a bit. I haven’t exercised properly in awhile, but I didn’t run that hard and it REALLY hurt. 

I have an anxiety condition related to health and I’ve definitely had phantom symptoms in the past, including chest pains and headaches, that amounted to nothing. But considering the evidence I feel like it isn’t stress related this time. 

Thanks for any help!