I had Vaser Lipo four days ago on my abdomen and am still in quite a bit of pain. The swelling seems to have mostly gone, but any time I go from a sitting position to a standing up one and vice versa, or even any time I walk quickly, there is a sharp stinging or burning sensation across my stomach, and a sort of ... 'bubbling' sensation, as if there is something moving just under my skin. The entire area is also very sore and sensitive to touch. Is this normal?