I'm sorry that Tubby still isn't feeling well.
I wish your vet's office would be more helpful.
Can you even get one of the Dr's to talk to you on the phone and go over the symptoms Tubby is having and maybe reassure you that he is ok?
I guess I am very lucky with my small town local vet.
It's less than 5 minutes away and I have had both the vet and an assistant call me to follow up after Samantha has been in for a visit.
I also have a good friend who has worked in their office for the past year so it doesn't hurt to have a connection on the inside.
I really hope that Tubby feels better soon.
Good luck with the vet appt. tomorrow.
Hugs to you and Tubby from me and Samantha.