I am so sad reading this. I know how hard it is to wait for answers, it makes us ill.
I hope it turns out to be something that is treatable but if it isn't try to focus on the fact that you and Chester still have a lot of living to do. You will be able to hold him and kiss him and make his life as good as possible as long as possible.
I went through something similar with my Shelby but I didn't have that time. She was totally fine until her breathing caused us to take her to emergency. A mass was found and the decision had to be made.
I know how horrible you feel, I really do. I would have done anything to have some time to understand and accept her prognosis. My only comfort was knowing that I loved her as much as any dog could be loved. I know you feel the same about Chester. There is never enough time with these precious babies but how lucky we are to have them in our lives.
