your problems are so familiar to me. I would say I am an experienced flusher and did 15 LF's so far.
However, my problems/pains around the gall bladder area started after having done bowel cleansing for 2 to 3 months.
According to my experience, everything that is "wakening up" the liver can cause these sensations. My interpretation would be your liver has woken up and is quite ready for another liver cleanse.
By the way, because of the pains you described sometimes I did LF's with only one week apart, simply because the stones were moving so quickly and were blocking the exits.