pinka,

There is a wide variety of chiro techniques so commenting on one chiro is difficult. The 'twist the head and pop the neck' is too aggressive for many subtle upper neck injuries. A sore back after an adjustment when there was no soreness or stiffness before does not sound right to me.

I used to have to take a brisk walk after a back adjustment then get adjusted again.

How did he diagnose your back and neck ?