I remember the doctors asking me after partial removal of a brain tumour if I remembered them waking me up during the surgery. I wish I did, but I remember abs

I remember the doctors asking me after partial removal of a brain tumour if I remembered them waking me up during the surgery. I wish I did, but I remember absolutely nothing. This was about 15 years ago, and I don't remember if they said they would wake me up prior to the surgery. Maybe to my parents.