Gas bubble

I'm one week Post Op! But the gas bubble remains. I'm walking everyday and yesterday was the most active and I felt I over did it a little with house chores. But I lay down and feel the bubble bouncing around my lungs and ribs :/ I propped up my hips and got the bubble lower so I could at least sleep, but when I get up again it's back in my ribs. Any suggestions? Does GasX work for this?