Hey, I have the same cracking in my sternum, almost identical to how you explain it. I have been having numerous digestive issues the last half year as well. The funny thing is I have always believe the two are related, because the cracking started just before my digestive problems.. That being said one of my issues is GERD, OR so my doctor says, I have never been formally tested. Along with GERD there are an array of other issues, like a constant (and when I say constant III mean CONSTANT (very annoying)) bubbles or something moving around my whole digestive track, or so that is what it feels like. Inconsistent stool, but whether it be constipation or its opposite, always a noticeable amount of mucus. On top of that, all the usual GERD symptoms on crack, regurgitation of acidy tasting nonsense, which brings me to why I believe my sternum (might) be related. It kind of feels like the food I eat is having difficulty getting to my stomach, and from there having trouble as well. Those are most of symptoms, and the doctors have no clue what is wrong with me, so in hopes of finding someone with problems similar to me I have decided to come to one of these forums. This feeling of gas, GERD, and sternum issues after almost eight months are simply getting annoying, frustrating, and they are starting to affect my life..
Any help would be greatly appreciated,
The guy with a lot of issues