Is it normal to feel a small pop when you bend a certain way in your stomach after lipo?

I am 6 days post op. I had a Liposuction on the flanks, mid back full stomach and outer thighs with a transfer to the buttock. I wear a foam square under my compression garment that covers the upper abdomen below the breast and just below the belly button. It the foam does not cover the lower abdomen. On the third day I noticed a pop kind of noise when I move a certain or push myself off the bed. It is near the left side of my belly button. Should I be worried?