Strange schnauzer after vaccinations - help

by Linda
(Kentucky)

My mini Schnauzer just recived her rabies shot and other vaccinations on Tuesday of last week .. she also received a steriod shot because she was constantly scratching her neck and would not stop licking her paws and feet!
Ever since she recived these shots she's acting a little puny, just laying around not playing and being hyper as normal.. and she,s constantly hungry. It seems she can,t get enough to eat??
Is this normal or should I be concerned?