i don't actually have brachial neuritis but this is an idea of what my rt shoulder looks like from the side




http://hanslindgren.com/blog/scapular-stabilization/

this link i just found is interesting

"The Diaphragm’s stabilization effect on the scapula can be demonstrated by activation of proper diaphragm breathing, to develop an increased intra-abdominal pressure, which will decrease the winging of the shoulder blades. By instructing the individual to push the diaphragm further down into the abdominal cavity while still maintaining normal breathing, the anchor points for the scapular stabilizers are further facilitated and the scapular stability will improve. Correct activation of the core by an increased intra-abdominal pressure can be assessed by placing fingers at the lower lateral abdomen, just above the groin. There should be an even expansion of the entire abdominal wall with a firm pressure generated in the lower abdomen.

To achieve the best possible stabilization it is also important that the supporting hands have an even distribution of load (all 5 fingers should be weight bearing). By correcting the weight distribution on the wrists and hands the scapular stabilization often improves. DNS emphasizes proper centration of supporting joints to facilitate good stabilization patterns.

Insufficient stabilization is most often not due to weakness of the muscles but primarily a lack of proper activation. The stabilization patterns therefore have to be properly activated before strengthening of the muscles can be achieved."

this totally applies to me

actualyl yeah the girl i know who cured her completely winging shoulders used this technique i think. DNS. Dynamic Neuromuscular Stabilization

ive noticed i can lift weights in isolation for my s.a. and lower traps but it's POINTLESS bc you aren't using them in sync with your body correctly, if that makes sense.