Yes i have sorted through the coat-hanger syndrome. it is a symptom of nOH as well. was not sure if i was feeling just stress tension or what but it cleared up once i was put on Ranolazine.
"nOH also causes other symptoms (e.g., shoulder heaviness [“coat-hanger syndrome”], orthostatic angina, and dyspnea)."
https://www.sciencedirect.com/science/article/pii/S0002914920301028#:~:text=Clinical Signs and Diagnosis of nOH&text=In addition to symptoms of,orthostatic angina%2C and dyspnea).