Save Chewy

This is my baby boy Sir Chewy. He is the sweetest dog I have ever had and some of you know I've had a lot of dogs/animals in my life time. Chewy is usually always playing with our other dogs (his 2 bff's) and lately we've seen a change in him that has taken a very quick turn for the worst. As of today he has no diagnosis. We have tried steroid shots and he is now on antibiotics but there's been no good change in him. We just had blood drawn today to test for cancer but won't have the results until later today. He does have swollen lymph nodes by his neck which could be the cause of him  having trouble swallowing but we aren't sure. Chewy is going to need a lot of testing done to get to the source of this problem so I am asking for any kind of help I can get. Between him and my other dog in the last month we have paid over $1000 in vet bills. I have already spent over $3000 on Chewy alone for his medical issues. He is only 6 years old and I feel it's not his time yet. Unfortunately my financial situation is very bad right now. I will take any kind of help I can get for him. I won't stop fighting for this little guy until I am told there's nothing less.. As of right now he still has a chance. So please donate or share his story. If you have advice please give it. ANYTHING will help. Thank you for your time and please help me save my baby boy!