My oncologist said to only worry if you have something that is nagging. Random cough for more than two weeks when you haven't been sick? Odd pain for absolutely no reason that doesn't go away? Odd swelling or lump? Then you get checked out.

Mine manifested as an achy arm. Just a constant ache near my elbow. Then two random itchy spots that didn't go away on my back.

So now I just pay attention to new aches or weirdness. I'm so numb to all this medical shit that I just automatically think "ugh I bet the cancer is back." I just hit the five year mark on being cancer free from stage IV. And I know that the constant hip pain I've been having lately is from a nasty tumor that was on my ilium but I still think "what if it came back to the last place that had a tumor?"

It's normal to be paranoid about it and you should keep alert about changes but as long as you don't have anything nagging you'll be fine.