I have it almost constantly. Shortness of breath is on and off, but more so when I have the edema in the abdomen area. Happens worse shortly after eating. I try to eat smaller meals now.
I have had the edema on and off, and my Endo used to check my ankles when I had an office visit, so with Hashi's it is common, although I have not had shortness of breath. Good Luck FTB4