Is it possible that it could be something to do with your nervous system? That causes shooting pains and it can mess with the your heart rate. Having angina can cause you to panic a little. but usually if it is a panic attack the anxiety would precede the angina. GERD can also cause some wicked symptoms (my throat and mouth burned out once). I would get that checked first. Second, if you have an array of neurological symptoms it is possible to have the CNS version of Lupus and it can cause neurological and muscular problems with the heart. They can't really see that and it is hard to catch on the monitors becuase it comes and goes. My heart gets so bad I would swear the EKG would pick it up but doesn't. The doctor will hear it though.
Don't know if you are a single parent like me, but for 8 years they drilled it in my head it was just stress and it must be anxiety because I was single. Never understood that, but that is what they thought. However, it wasn't the cause. You know you. If you are generally calm and can handle stress you know it. If not, you would know that too. Chances are they haven't found the cause. My guess is it isn't too severe, but the getting worse doesn't sound good. My thoughts are to check out the GERD to see if that is the cause and if not, ask for suggestions on some other non-cardiac causes and/or get a heart catherization done. Personally, I think you would know if you had anxiety. Just like I knew I didn't have depression or somatization.
I'm pretty sure when young women come in with heart symptoms, they think we are nuts. I'm just about 38 and they still blow me off with heart issues. Somehow I am too young for those problems. Not so, I'm afraid I had pericarditis, mitral valve prolapse/regurgitation and now an enlarged heart. Just no heart attack yet thank goodness. But you know when something is not right in your body. It may or may not be your heart. Perhaps something near your heart causing it. I have had muscle spasms and costochondritis that also felt like a heart attack, just without the pulse and systolic problems. I hope you find relief soon. Thankfully, they did do an extensive check on you.
Dx: Lupus CNS 11/2005; Current - kidney disease, enlarged heart, MVP/regurgitation, dementia/Alheimer's (improving); GERD; blood clots in eyes/vision loss, narcolepsy, rheumatic arthritis and arthralgia, IBS, ovarian cysts, raynauds, EBV/CFS, mild inflammation of liver and spleen. Rx: Atenolol, Aricept, Flexeril, Motrin, just off Provigil
Previous 1996-2006 - discoid rash, hemi-pelagia, migraines, hands/feet sensory loss, anmesia, PTSD/Depression, imbalance, weakness and muscle spasms, shooting pain, dizziness, fine motor movement problems, miscarried 2 children & severe complications w/2 I managed to get out, False positive syphilis, swollen glands, high fine speckled & homogeneous ANA; Positive IgM; constant staph and strept UTI infections, colonitis, pancreaitis, gastritis, costochondritis, pericarditis, high Methylmalonic acid, high Epithelial cell counts, off and on low red/white or pallet counts, hypothyroidism/Hashimoto's disease, postural hypotension, dyspnea, periods of hypertension/hypotension, lipedemia, mouth/lip ulcers, pneumonia, skin tightness/hardenes, ligament conjectures, weird purple pimple rashes on legs, hypopigmentation (leopard spots) on legs and arms, vein swelling, abnormal menustration, uterian fibroids and some of the current problems. Rx: usually Toridol, nerve blockers and antibiotics.
P.S. You asked.... Probably forgot a few.