Babys Hiccups

What does it feel like when your baby has hiccups? 
I'm 33+ weeks and sure my daughter has hiccups numourus times a day but not sure if it's hiccups for sure because my eldest daughter never had them when I was pregnant. 
I can feel them low down (she is head down) near bum/vagina and it's like a constant very strong flicking every two seconds or so. I know flicking isn't the best way to describe just can't think of another word lol.