I have Precordial Catch Syndrome and it is apparently not supposed to happen/wake you up during sleep. This has happened a few times for me and I am currently over 12 hours (including sleeping) when the pain has not been relieved. Should I be worried?
Well, it is mighty hard to diagnose primordial catch and not have it be possibly something else. Most of the other causes are similarly 1) non-serious and 2) treated with NSAIDs about the same. There can be irritation of the rib joints (Costco Chat Doctor.  There can also be pneumonia, a tumor, angina, depression, anxiety, and probably many other disorders that can cause similar problems. Simple exam with simple tests can help eliminate some problems.