Kim whatever choices you make will be the right ones, you and you alone know what is best for your dog, and we all know you as a very responsible pet owner,personally i think she is in very good hands, and very lucky to have such a good mom,if you need to ease her pain,by letting her go ,then you will know when to do just that.

Everyone is different and deals with such things in their own way, if thinking about getting a new pup takes your mind off what is happening with your dog, then it is all good.

It will all work out in the end, and bless you for taking such good care of your dog,here's hoping she is not going to suffer much longer.