Hello Kerry, and welcome. I am sorry you are dealing with this. Chest pains can be both frightening and scary! I too suffer with anxiety, and chest issues, and it is no picnic. The fact that you are saying your pains are shooting seems a bit odd to me. If you are not happy with the asnwers you have gotten from your doctor so far, I'd say definately get a 2nd opinion, and a 3rd and 4th if need be. You only have one heart, and it is worth it to do whatever it takes to keep it! I know from my own experience, chest flutters can be from anxiety, I too get them. And, everyone gets them from time to time. If I were you, I'd be more concerned with the shooting pains.
Keep us updated. I wish you all the best in your journey to finding out what's wrong! Or maybe not wrong...