HAPPY SATURDAY
Oh dear. I had that also. I blamed mine on sitting to long at the computer the first day I f elt up to it and leaning to much to the right because my left side was sore. So I know how you felt. It was OK once they dagnosed it because I can deal with what I know. It's the unknown that can scare the crap out of you. Keep using the spirometer and exercising even if it hurts. I was fine after a day and a half. Hope it is better for you soon.