Dear Sir/ Madam
A pain radiation
to shoulder blade means it starts some where else and goes to shoulder blade or is it there at shoulder blade muscles. Both have different meaning. Shoulder blade radiation is characteristic of pain originating from structures near your diaphragm (partition between lungs % tummy). Gastroenteritis
can itself cause body aches. If your clinical examination is normal (I hope it was done before stress
ECG)? A normal clinical examination makes chances of pain related to gastroenteritis high.
I am afraid without an examination I can not provide more insight in this issue.