Umma has hiccups very often, it happens when she needs a drink, after she had it, when she wakes up, when she finished eating, when air blows in her face and so on... sometimes her body shakes so hard I feel sorry for her, they are though of a short period of time, usually 3-4 minutes so all I do is wait until they're gone and try to keep her calm while it happens...
Hiccups are normal at puppies and they happen less as they grow.