Oh Heidi I'm so very sorry to hear the news about Quahog, just when he seemed to be doing so much better. Unfortunately, as we all know, cancer can be like that, striking suddenly without warning.
Sending you, Skiff and Quahog ((((HUGS)))) hoping that you all have a peaceful night before you have to consider the most difficult and yet loving decision that any animal owner has to face.
My sincere sympathies and thoughts are with you. xx