Bud's seizures?

Bud had been doing well on the pheno until yesterday. While I was at the dentist Bud had a seizure and took him the rest of the evening to recover. Today he is still is having a difficult time with balance.

Well just a few moments ago he had another seizure. I talked to the vet yesterday and think it may indeed be a tumor. His quality of life is going down hill.

This is very difficult for me. I wish there was more I could do.