Is it okay that my chest cracks? Is it okay how much i crack my joints?

My chest, near my breast bone, has recently (in the past year) been starting to crack when I stretch out or sometimes just randomly. The first couple times it happened it really hurt. Now it releases stress for me and feels good and I can pretty much do it whenever I want to. Is that normal and or bad for you? Also I crack my knuckles, back and neck frequently throughout the day, are there really any bad effects to this. I’ve heard that its terrible for you and that you shouldn’t do it, but I’ve also heard that it is good for you and causes a release of stress hormones. What is the truth?