Yesterday my Zazou and Snoopy went to the vet for their annual shots. They both got a clean bill of health.
This morning Zazou is acting really weird. She cries when I pick her up, she is in her bed all the time, no eating and no drinking, she is so lethargic...
I phoned my vet and asked his advize. He said to keep a close eye on her and wait 24 hours. If she is still acting this way, then he wants to see her

None of my cats ever reacted this way on their shots, so I am very worried. Please tell me that this is not abnormal????