Hello I'm having such problem & I was wondering If anyone could please help or let me know if this is serious. I am sick with running nose, I'm coughing a lot With a bad chest congestion also coughing up nasty mucas & whenever I breath in deep breaths my left back shoulder hurts badly & been going on for 2-3 days the first time my left shoulder but like on my back started I woke up with sharp stinging pain left shoulder blade that was progressing Toward the front. That's happened twice now,but All during the day & when I get hick ups even! Is this just because of my cold I have or what?