Starting yesterday, my right shoulder blade (upper area) has been giving me sharp pains when yawning, breathing deeply, and coughing. It isn't very noticeable otherwise. I am 26 and have been suffering from constipation and its related side effects. Is this a gas pain? I have been trying to treat this constipation with a combination of prescribed meds, diet, and OTC enzymes. I smoke 1-3 cigarettes a day, which I know is bad, but I doubt this is related...? I can't remember any major strains on my back since last weekend but it's possible....