Hi and welcome. It is trapped gas that they use to expand your belly so that they can see what they are doing. We call this swelly belly! It will go away eventually. Try drinking hot tea and do not lie completely flat. Rest in a recliner if you can. Walk but not to much, just enough to get the body moving a bit...this can help with the gas. Also, if you need to, get some gas-x...this helps to get rid of the gas also.
~Tascha
Hi,
Also try peppermint tea this helps get the gas out of your system