Having this weird sensation in teeth and difficulty inhaling long breaths. what could be wrong?

Consider this.: In medicine / dentistry there are only a few true emergencies-- these include: uncontrolled bleeding, loss of consciousness and the inability to breathe. If any occur, one should seek immediate medical attention (calling 911 if severe or the emergency room at the nearest hospital) if you truly are having difficulty breathing than that is what you need to do, otherwise see your md. Then dds.

See dentist: Long breaths may be irritating a tooth or oral issue that you are having. Or, you may have abrasion at the gum line and have exposed sensitivie tooth structure. See a dentist.

Some confusion?: Your question is open to interpretation and therefore somewhat confusing. If the problem is merely sensitivity to some teeth with long or deep breaths, it is because the cold air produced is causing the teeth to be sensitive. It may be cavity or exposed root surface or just sensitive teeth. See dds for evaluation. If you have a problem taking deep or long breaths, see your md asap.