Sometimes liver-flushing result in after effects even for some people who had completed many of them without any complications.
Mostly the strange sensation is caused because some infection in the bile has moved to a different location and this has resulted in some local inflammation. Although very annoying it is considered to be part of the healing/cleansing process and only affects a few people. The recommended course of action is to wait without carrying out any further cleansing until it subsides.
Please don't get downhearted; sometimes these setbacks are signpost along the road to recovery.