upper abdominal region
about me: 23,f,5'2",106lbs

I have recently had this very intense tmj pain. I had to remove crunchy and chewy items from my diet and I haven't really found time to look for these foods beside soup. I can't even drink water properly without force-fixing my jaw which looks weird in public. I have been too frustrated to eat or when I do, I take a bite and suddenly I'm full. I started getting this growling feeling in the middle of my chest, that pocket-like area between my rib cage. When I'm usually hungry the growling feel is much lower. I have a feeling it may be just gas but maybe it's more. It's like sharp, stretching, squeezing and gnawing/growling. It doesn't help I am on my period this week. I mentioned all the above in case they may be related. What is this pain? My back is killing me as well.