If he hasn't eaten in two months and hasn't lost any weight but yet the vet still wants to force feed...do you really want to trust the vet? I could be wrong but it's my understanding that force feeding is very stressful and should only be done as a last resort. There isn't any weight loss and there have been others who have gone a lot longer without eating so 2 months doesn't sound all that bad. I think I would seek a 2nd opinion