Anxiety attacks

The past week I’ve been having weird spells where I have shortness of breath, heavy chest, and rapid heart rate/feels like my hearts going to explode. I breath in my nose and out my mouth to help but this has never happened before and it’s happening more lately. Idk what the trigger is or if something is stressing me out more than normal but I never feel stressed my only indicator is my body usually just shows signs. Is this an anxiety attack? Do I need to see a doctor? What kind of a doctor? What will they ask?