yes its normal the burps usually wear off , but for me they can be a sign I need to purge a blockage, fish was a difficult one for me to tolerate, def eat more slowly buy a toddler fork set can be great a getting you used to smaller mouthfuls , also be carefull if your fishpies have sauce in my dietician would incourge have as much as poss without sauce it helps things slide and are usually empty calories