Andrea,
I could say get a snack and get comfortable because I am about to go on and on about chest pains! But, I'll try to keep it short. Been there, done that, and bought the T-shirt! Chest pains are my primamry anxiety symptom. I have to go back and remember who gave me the great advice on this board, but someone suggested I read up on Costo Chondritis (sp?). It's a type of chest wall pain that manifests usually in the left side, sometimes right and is typically noted to vary in location like yours and be painful when you toch the area it came from (is it that way for you?).
In reagrd to th Dr.'s, trust them. Easier said then done for me as well. I went through nearly two months of constant chest pain recently. 5 Dr.'s, 3 EKG's, 2 chest x-rays, and a blood test later and I was still convinced I was going to have a heart attack. Saw my regular Dr. who put me on Lexapro and gave me a full physical. Realizig I wouldn't let go of the heart attack idea, shesent me to a Cardiologist. A stress test later and the Cardiologist told me it defintely was not my heart. Dr. also gave me Vioxx to relieve the nflamation that was causing the chest wall pain.
Long story short, 2 months of pain, worry, and anxiety have faded away. Been symptom free for over a week. No panic, no noticeable anxiety. All from finally working with and trusting my Dr. Trust what they are telling you and ask your Dr. if medication might be right for you. If you use them, cut back on caffeine and nicotine as well as take some walks. All help reduce anxiety. Keep us posted, you'll be just fine!