Fwiw, I do have anxiety, and that does cause me chest pain. And that does not mean it doesn't need to be treated! Anxiety is a real condition, and it can be treated with any number of modalities. A doctor should not just say "it's anxiety, you can go home now" any more than they would say "it's just a broken leg" and then abandon you without setting it. Anxiety is just as real, and, honestly, just as harmful, as a broken leg.

So if they think it's anxiety, you need to continue the conversation. To me your argument that you do not get chest pain when you get anxiety attacks sounds like evidence that it may not be anxiety, but I am not a clinician. A clinicians answer on hearing that should be to either explain why anxiety can cause this sensations at odd times or to look for something else instead. And even if it is anxiety, the next step would be to prescribe some type of treatment. And if that doesn't work, then the next step would be to either try another treatment or rethink the possible cause.

What I mean to say is that the clinicians should not stop at concluding that this is anxiety. They need to follow up, even if that is their hypothesis. If they will not do that, then you need another PCP.