Re: sighing/yawning constantly shortness of breath?
Yawning and sighing are both signs of hyperventilation. Unless the hyperventilation is extreme, you may not even realize you're doing it. When I'm going through a particularly anxious time, I do this, too. I feel as if I can't get enough air (and I don't have any respiratory problems), I can't breathe properly, and I do yawn and sigh more. Doing some deep breathing exercises can help, but don't do too many at first. Just breathe in very slowly and very deeply, try to draw your breath in to the count of 10 (or as far as you can go) and try to very slowly exhale to the count of 10 or as far as you can go. Pause about 3 or 4 seconds between breaths and repeat. When you do this just two times, it sends your body a "cue" to relax. If you're new to this, I'd practice 5 to 10 minutes at first. If you're not new to it, just keep practicing because it can really help the symptoms you describe.