So, our lymphatic system runs through our body and everyone has it. :>) What you describe is most likely normal. We are not radiologists nor is the tech. So, we can't read a mammogram. What happens if something is suspicious is that they will call you back. Usually in short order and let you know. Then you go back for follow up. When I had my first mammo, I had a bi rad score of 5. This is the score that radiologists give when they have an abnormal mammogram. The scale goes from 0 to 6 with 6 being cancer. I was a 5. Within two days, I was back to determine what was going on with what they saw which was calcifications. I did not end up having cancer. But you glancing or the tech guessing is not really telling. You'll get a call if they were abnormal and you should not worry if you don't. And if you DO, you should also try not to worry. :>)) I say that as someone that was pretty scared and it turned out to be nothing. And I did tell myself often, that if it turns out to be cancer, they are catching it to treat it so it can't hurt me.
Hang in there. They will let you know if it is something to be concerned with and you should not worry at all until you hear that good luck