You are not likely to have a frost heaved chimney in the center of the house. This problem is not that uncommon with center built chimneys. They were built on an adequate base. The house usually is not attached to the chimneys but are held in place by friction against the chimney. Because the chimney goes all the way up through and will affect all floors and the roof it is generally easier to jack and level the outside walls than try to release the binds on the chimney.
Be sure you live your life, because you are a long time dead.-Scottish Proverb