Experiencing a painless clicking or cracking sound and slight feeling in the back roof of my mouth. it happened after taking a big bite out an apple?

TMJ: The temporomandibular joint can often get inflamed and click/lock if you chew gum a lot, eat hard things like candies, ice, nuts, or you grind your teeth. This can also happen after opening your mouth too wide. I usually recommend not to excessively open your mouth wide for a few days, avoid gum and hard things, take some Ibuprofen and see how things progress. Good luck!