I've been suffering with shortness of breath for a while now (a few months). Think it started when I had a cold but hasn't gone. I feel like I can't get enough air in my lungs, so take big deep breaths which makes me feel bloated and sometimes I get a sharp pain in my neck/collar bone area. I'm wondering if it's become a habit rather than anything actually wrong. I don't actually feel puffed out when I exercise or whatever, just this horrible feeling of not getting enough air :(