I get them after I eat. I get them after I drink. I get them when I haven't had anything to eat OR drink. I get them mid morning, mid afternoon, etc etc. It's really ridic. They don't last long - but I get them several times a day. :/
My daughter is like that... since she was a baby she gets them ALL the TIME! I do the little 1 hiccup at a time thing. My office mate just giggles at me!