New and need winged scapula help
 

Hi there,
Long story short, I've been weight training for over a year now, am getting ready to do a figure competition in August. After my posing session this past Saturday, I noticed my left scapula is sticking out like a winglet, whenever I raise my arm 90 degrees. I am able to raise my arm completely without any pain, etc. Anyhow, I have weakness on that side, cannot do my normal pushups, etc, very painful. I've never had any injuries, etc. involving that area.
Is it possible I strained my muscle, or pinched the long thoracic nerve? Will it resolve itself? Any help would be greatly appreciated. Not sure where to go from here.
Thank you,
Dee