gave 15 m old lab puppy spectra 7 shot per shot sch. this is his 3rd of spectra 7, last night gave him the shot after his dinner. 1 hr later dog very lathargic and vommited several times.. checked for dehidration this am and found puppy going into seziers several times had to rush him to vet emergency. on fluids and has low blood suger.. on fluids currently and comotosis.. has anyone had same issues? other lab puppy same age seems ok (brother) same food same shot .