Oh Kimmi,
It really is normal to travel back to the past, and I think we do it because the present is so much out of control, you know? as in this is out of your hands, so in our minds if we can just go back and change one thing, we wouldnt be going through this right now. Of course it makes you sad and hurts too. So important to just feel whatever it is you feel, then let it wash away. Bring your focus back to where you are right now and keep talking. Definitely tell your Oncologist everything as the Team will help you every way they can.
Hugs
Melinda