What Causes Chest Pain And Weakness In Arm?

Its been a few months ago that I started having pains in my chest. I went to the hospital and had test run and it turns out that my heart seemed to be working fine. But the pain was still there. Some say that it could be anxiety.. But the pain is too real and continuous for that to be true. I think it may be an ulcer because the pain comes and goes. Sometimes its worse with different foods that I eat. Daily I feel a pain in my chest. and it has gone through my left arm for a couple weeks. Its kind of like a slight burning sensation that I feel in random places of my left arm. Today its in my shoulder. I was working the other day and I noticed a weakness in my left arm. Almost like there wasnt enough blood pumping through it. I dont know what to do about it but I do know that its real.