I would talk to your vet about the rest of the shots. He is probably the best judge on if Calvin would become ill from them.

Has Calvin calmed down at all? One of mine has bad reactions to the vet, not physical but behavioral. She will hide, as first it was for days. She has had problems for the last 3 months and has had to go to the vet alot more often and she is generally much better when she gets home know. My other one does hiss, at the vet and after he gets home. So it sounds like Calvin's reaction is a bit extreme, but it could be that he is just scared. Again I would probably call the vet and talk to them.

I wish had had some answers besides call the vet, but it is what I would do if I were in your situation.

Good luck and prayers for little Calvin.

I love there names by the way.