[quote user="huskymom"]Should I start it before we move or will it be sufficient to start it once we get there and get to see my old vet? [/quote] You can wait until you see your old vet. Heartworm "preventatives" kill baby heartworms in the dog's system at the time the "preventative"...

He is doing much better this morning, he is still eating but we are taking him to the vet