My first thought with my SOB was CHF, though I don’t have the peripheral edema that usually accompanies it. I’ve made an appt. with the NP in my cardiologist’s office. I’m wondering if I might need a cardiac Cath & another stent. I had a stent placed in 04, 08 & 12, so I’m overdue. I think the SOB is at least partially related to the injection of Prolia since it started at that time. I see my PMD Thu. & the NP 11/1, so hopefully I’ll find out something. You sound like you’ve researched your SOB well & found some procedures that help. Good for you.