How do I relieve chest tightness???

So in the past 2 days I’ve had a bit of a tight chest and throat is sore. I went to the doctors just to clear things up this morning and he said my blood pressure, breathing etc is fine. I assumed it was my anxiety. I’ve only had chest tightness once before with anxiety. But now I still have it. I panic so much. Is there anything that I can do to help it?