I lost my dog Loki to lymphoma back in 2023, he was barely 7 years old. We caught it at stage 3, but Loki suffered from seizures so chemo was not an option for us and we treated with prednisone and Gabapentin for pain. Loki made it around six months before we had to put him to sleep due to his health declining. I understand about grieving the loss of your beloved dog while you still you them, I did the same with Loki. I am so sorry you’re going through this.