Surgery scheduled for Tuesday Feb. 23rd

Hello all.  Our Golden girl Ginger is scheduled for an amputation of her left rear leg next Tuesday because of bone cancer.  Like everyone else, we are struggling with the whole decision. Our problem is that Ginger does not seem to be in pain.  She went on pain meds about 3 weeks ago and she is running around like a puppy!  She just LOVES all the snow we have out there now.  I know she is in pain though so it is the right decision.  I also worry that she will hold it against us.  I know I am putting human emotions on her and I’m trying not to, but it’s hard.  We would love to hear other’s experiences with this whole process.  Ginger is a golden retriever who is not even 6 years old yet, so this is hard to take.  I am trying hard to be the Alpha for her and we will get thru this I am sure.  Looking for words of advice, what to expect, etc.  Thanks to everyone.