Last night I was drinking a really cold drink and I noticed this weird pain in my upper to middle pack. I stopped for a second not understanding what had just happened and then took another sip and there it was. Then oday when I was eating I noticed it again. It was there everytime I swallowed. It feels like I can actually feel the food goin down and then I get this pain in my back I can't explain it but it almost feels like I swallowed a pill that was cut in half and it's getting stuck in my back. It hurts and it's scaring me. I don't have any pain in my chest or shoulder or throat just back. I was looking on the internet to try and find something and was shocked when I found all these people with some of the same thing.