Paula,
Then you have to see timing before feeding lor... what you can do is try to wake bb up a little by changing nappy or use wet fannel (small soft bb towel)to wipe bb face (sure to wake up one!) Remember to keep milk warm (since you are feeding bb formula milk) in the warmer or in a cup of hot water, so that you dun waste the milk. Max is 1hr, after which you've to throw unfinished milk.
My bb also hiccup too, it's normal. It's either you leave it alone which will take a while for hiccup to subside, or you can try feeding bb with a bit of water, which hiccup will subside faster.
As for burping, sometimes mine doesn't burp after each feed too, it's also normal. You can try swirling bb's body by holding on to bb's head and body with both hands and move bb round in anti/clockwise direction. Make sure bb is in sitting position. Else you can let bb lie on your chest facing you and burp bb. If all else fails, then dun bother. Bb will definitely burp when they struggle or cry, then they will burp very loud!