sending out lots of good vibes for just a fatty lump.
when you touch it does it seem to be fairly free floating, tumors tend to be "glued" to one spot and often squishy, fatty deposits can be hard or soft but "feel" more like its not realy attatched to anything, and abcesses are hard and move...
if that all makes sense...
youll be in my thoughts, thats one tough day ahead of you.