Just go to a doctor and get checked out so you can quit worrying! Really, those kinds of symptoms sound like they could be serious. If I'm having an asthma attack, I can't take deep breaths and I cough a lot. But hey, I'm not a doctor -- I don't even play one on TV.
Your profile doesn't say where you live, but perhaps it's in an enlightened place with universal health care! So high-tail it to the MD, if it's possible.