I sometimes have Pain in my Heart. Back.

I sometimes feel pain in left and mid chest. And sometimes at my right upper chest and in arm pit. When i walk sometimes pain occurs and if will run i feel shortness of breath and feels like my lungs have swollen. I do have anxiety as well. With anxiety i feel like im dying, i get this feeling like i will faint and my soul will left my body. My heart races and i become more nervous with anxiety. I have stomach problems too but I don't have pain in my stomach but acid reflux and my burps get stuck then i feel like my heart is aching so bad. I did echo test as well. That was normal. TMT was normal as well. ECG were normal. But i don't know what is the main problem. My enzymes in liver are at higher side. I had many tests only SGPT and SGOT are at higher levels. Rest i did many test those are negative. If there is anyone who can help me out. Please revert me back.