If you can go for a walk and even better yet go for a walk with some relaxing music or music you really like to listen to whie you are doing it.
Something that can take your mind off your stomach helps I do cross stitching and puzzle books.
You won't be sick from it. I know people that WILL but it isn't because they are sick it is kind of a bulimic reaction and they just let IT happen. If you don't feel sick now just uncomfortable just a little easy movement will be ideal. Some antacids will help get some gas out or settle what ever it needs to do. Which will ease a little pressure.
Hope you are feeling better soon.