I would also go to the vet. Your baby is very tiny and the amount of shot (I'm assuming a vaccine?) they give a 3 lb baby is the same amount they give to a 100+ lb Great Dane. Some have had adverse reactions; some have died. Please update us on your baby.
__________________  The T.U.B. Pack! Toto, Uni, & Bindi
RIP Lord Scrappington Montgomery McLimpybottom aka El Lenguo the Handicapped Ninja 10-12-12 
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