Does a chest Xray include the abdomen? I know that sounds like a stupid question!
I had one done to start the hyperbarics on Monday and it looked like you could see where my feeding tube was. The Xray was fine but to an untrained eye, I would have guessed that I was a goner, lol.
Minnie

If it was a standard standup type machine and you happened to notice where they loaded the film tray, that is as far down as the x-ray would show. The Stomach is higher up than you might think and it is likely that at least some of it would be in the chest x-ray. (as well as your lunch) :p