Hello Walrus, Welcome to the Forum! I'm sorry your having a difficult time. Your symptoms could very well be GERD related, but always a good idea to check with your Dr. Have you ever been diagnosed with GERD? You indicate having a Murmur, have you been seen by a Cardiologist, or had an Echocardiagram?
Diet is very important with reflux, grilled fish, most fruit, and even salads have caused reflux in me on occasion, so everyone has trigger foods that may not bother others.
I sometimes get chest discomfort on both right & left side of chest, but I'm not extremely concerned when it's only on right side;seems GERD related. I'm a little scared when it's on my left side, although, it had also been GERD related. I have also gotten chest discomfort on movement in the past(walking, bending, etc...).
I was diagnosed with an Aorta Insufficiency (Heart Murmur)23 yrs ago. The constant chest pain led me to the ER, it initially appeared like heart burn. I was extremely athletic at that time in my life;just a teenager. I continously complained of chest discomfort, but dr's could never connect it with the Murmur itself. I had every cardiac test done, and all returned relatively normal.
In my opinion, I believe it was definitely related to the Murmur, maybe not theoretically, but very much related. In the winter months, I need to walk a little slower, in order not to over exert myself, afterall, the Valve does not open and shut properly, causing leakage, making the heart work harder. I haven't experienced chest discomfort assoc w/murmur in yrs. Last Echo indicated that murmur has closed a little;very slight now. I take Antibiotics prior too any surgical or dental procedure.
Congrats on smoking cessation as I'm well aware of how tough it is to give up things we enjoy. You are also doing a fine job w/your diet. Please don't let your dr intimidate you with your weight. In my opinion, I think you should discuss your constant chest pain with your dr immediately, just to be safe, also ask for referral to Cardiology and maybe GI too.
Please let us know how everything works out.