question: Hello I went for a pre-employment x-ray today at work the boss told me that the nurse needed to speak with me  tomorrow. So I went on in  to work my shift and began to worry. I have a small  not not knot in the middle of my chest that is squishy and moves when touched. Could that be the reason the nurse wants to speak with me.? Would that show up on a  chest x-ray? Just really nervous but I feel if it was really serious they would not have let me work. Please help and thank you!