It's possible that it could be a lymph node in an odd location. My little sister had a lump on her head when she was born and it turned out to be a lymph node. We were told it may become swollen when she's sick, just like any other lymph node Lymph nodes can become infected and pregnancy appears to increase the possibility.
You should see a doctor.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.