I’m 18 and have bad health anxiety. I get chest throbs often which my doctor thinks is an anxiety symptom. Right now I’m having a huge panic attack cause on top on those chest throbs I reached for my water bottle while lying down and got bad stabbing pains in my upper back to the left and now I’m terrified im having a heart attack. Now I’m shaking, sweaty, chest throbs, hard to swallow etc. Ik it’s anxiety but I’m freaking out someone help me calm down.