Left Shoulder Pain What Could Be The Cause Of Left Shoulder Blade Pain?

What could be the cause of left shoulder blade pain? - left shoulder pain

For days, I experienced the pain in his left shoulder blade. The pain is just below the left shoulder blade and sometimes radiates to the ribs below the left breast. No pain during movement of the arm or shoulder. The pain is relieved by warmth and pain, but returned again a few hours. The pain started me awake at night. Does anyone have any ideas or solutions? I am a woman of 42 years.