I had a bbl done 16 years ago, and my left upper buttock was always larger, firmer, and rounder than the right side. With time and massage the left side has gone down pretty significantly, and now it more resembles the right side. I use a shiatsu machine to achieve this. My question is, am I putting myself in danger of fat embolism by performing these massages? My technique is quite aggressive and I am worried that somehow I could be dislodging fat that could enter my bloodstream.