Top surgery nerve injury? Aching pain ongoing for 3 years and cannot cope! I just want answers if possible please?

I had MRI&US to detect the suppposed scar tissue that's entrapping the nerve for my ongoing pain in lateral portion of my chest but nothing showed.EMG was normal too but I was told it doesn't matter since EMG doesn't deal w/cutaneous sensory nerves.Does that mean my nerve injury was not a severance but rather a pull/stretch from my arm during surgery or even how tight I was bound for a week afterwards?No point of getting re-cut&explored since there is nothing to remove then?