This Morning, All Of A Sudden, I Noticed That It

This morning, all of a sudden, I noticed that it was difficult to take a complete breath without feeling a stabbing pain in between my right shoulder blade and spine, kind of mid back. Now I panicked king because it says pulmonary embolism!

I don't think I strained my back, or do they have you lifting, but it feels like a pulled muscle more than anything. What do you think? My other Risks would be obesity and sitting quite often .