These "fat cramps", as I used to call them, have been occurring for at least 8 years. However, they are occurring more frequently and with more severity. They are always in my torso area (that's why I have always referred to them as "fat cramps) and they always occur when I move in some way. I am unable to reproduce the occurrance at will, perhaps out of dread, but I can feel the muscles jumping and twitching in an extremely painful manner. I am unable to stop the spasm and the pain is so bad that I can hardly breathe or move to ease the pain. The spasms were always located somewhere along the muscles that cover my ribcage until just recently. Now they are extending to the abdominal muscles that leave the ribcage and go toward the inside of my hip bones. If anyone has any idea of what could be causing this, I would truly appreciate sharing in the knowledge. Thank you!