How did you find out you had cancer? Let's share our experiences!

My brother was starting his first treatment for cancer. On the day i found a large lump on my neck /shoulderblade. This is how he found out he had cancer also. What are the odds of this. So terrified i contacted my doctor. They worked really fast and got me all the scans needed. Seen specialist yesterday to be told i had lung cancer. And lynthnode cancer. Im now waiting to hear what treatment im facing.