I also am suffering from this SOB. Seems I just can’t get a satisfying deep breath. I first started having these about 30 years ago and was put on Zoloft for depression. Lo and behold, not only did the Zoloft help my depression, it eliminated this awful need to get a deep breath. It worked for about 30 years and then the Zoloft just quit working and the SOB suddenly returned. I’m back on Zoloft after being off of it for a few years but it hasn’t had time to build up in my system. I’m hoping the Zoloft will help again.