Chest Pains

I’m 17 and ever since I was 12 I get these chest throbs in my upper boob/chest on both sides. When I was 12 I also had a bunch of tests done and everything came back fine. They blamed it on hormones and growing. Well recently I got diagnosed with anxiety which I get due to health. I always think something is wrong w me. I’ve been having the chest throbs again and more rapidly. My doctor thinks it’s an anxiety symptom but I’m so scared I have a heart disease or something. Does anyone else relate or feel similar pains??