Cheat & arm pain, but clear angiogram

-31 year old male here. 

-For the past couple of months I’ve had left shoulder/arm numbness & weakness feeling. Recently I started having random sharp chest pains on my left side. Went to cardiologist and performed all the test. The stress test picked up on a small abnormality which prompted him to perform an angiogram. Angiogram was clear and he said that my heart was good. 

-I am still having left shoulder/arm pain and also sharp chest pains. Any ideas? Should I worry? When I have the pains they seem to strike fear and stress me out. 

-I also should note I’ve been having some gallbladder issues for the past 8 or so months. It was confirmed to be low functioning, however I don’t have any heartburn that I could relate to possibly be causing this pain.