I’m sorry you are going through this, Dust to Dust. Panic can be really debilitating. I am trying to do all the little things to reduce panic - teas, meditation etc, but still have good days & bad days. After a lot of tests I can’t pay for I am no closer to figuring what’s wrong with me, though after a normal lung function test I figured out that my difficulty breathing was due to acid reflux, i had failed to make the connection as I had no heartburn. It can be discouraging. The medical people often seem to feel that if your tests are negative it means you are just fine. While it’s a relief to know what I don’t have, I’m still sick & I don’t know why. I got a $500 bill from a Dr visit with 1 blood test, so I’m not going back unless I have an emergency. I’m not giving up but I’m trying to find cheaper ways of dealing with this at the moment. I know it’s frustrating. Good luck & hang in there.