Sorry to hear that. I haven’t posted in a while and I didn’t have the same breathing issues as you but i had chest pain etc for almost 7 months undiagnosed. They threw anxiety and stress at me every time along with musculoskeletal. I ended up pushing them harder and they ordered a CT scan to see my arteries and heart more closely. They found I was 90% blocked in my main coronary artery. I was shocked and so were they. Immediately admitted and had a stent put in. It’s been 2 months since then. Be persistent and stick up for your self if the pains aren’t going away. Best of luck.