Don't worry too much until you know more. I had a lump that I didn't know that I had. They told me to to monitor it and let them know if it changes in size yada yada, right after they told me it was nothing to worry about
So when I saw the surgeon he asked me what I wanted to do. I said take it out pleeeeazzzze. It turned out to be a fatty cyst. But what the heck...why would you need to monitor somthing that they say is nothing to worry about????? So after I knew it was nothing to worry about I didn't worry. I think it was a good decision to keep it to yourself and not tell the kids. I hope you have good news and good health.