Have any of you guys done a FIT test and everything turned out fine?

I did a FIT test a few weeks ago which came back at over 400 and I'm so worried, especially since I didn't see blood. I still don't know the next steps.

I just had a blood test and the nurse kindly sent them off urgently for me, so then I can have a GP face to face appointment tomorrow. I didn't ask for it to be urgent but she was very empathetic about me still not finding out what the problem is.

I also want to know if having had cancer in childhood (leakeumia) increases risk of bowel cancer. I can't find much info online.