Live or not, vaccines still have to cause a reaction in the immune system as if it were the real thing. Otherwise there would be no preparation when the real thing invades. So you could get symptoms, but since the vaccine isn't going to multiply they ought not be long lasting if you do get them. Maybe your body decided it knew this lot from before, and this time hit it with all it had ? Not that I know; if the body was already prepared then another dose of the vaccine wouldn't be necessary I suppose.