My dog ate a whole bag of hershey kisses, is he ok?

my small poodle ate almost a whole jumbo bag of choclate candy yesterday and threw up all nightm he seems fine now just cant quit shivering, hes done this before and was fine(i dont know how he gets them off the shelf) my other dog is a shitzu and i believe he ate some too but hes fine i just wanted to know if he'll be fine since i dont really believe the chocolate and dogs myth but i do realize it will make them sick so is there anything i should do?