I awakened in the night with horrible pain in the center bottom of my right foot. After 2 hours of trying everything to get it to stop hurting, I fell asleep. It was sore for the next several days(still is). I discovered the cause is the rectangular tall metal foot pedal on my old Kenmore/ newer Singer serger that I had been using for many hours the previous days. I'm in my 60ies and this has never happened before. Anyone have a solution for curing "pedal foot" so I can continue quilting?