It's PERFECTLY normal. It's just doing what mature females do best, and tossing pistils. If they are showing other signs of health, just continue on as you're doing.

This pic shows a pair of OGKush Abusive cuts.
I'm regenerating a mother to stuff in a TINY space, lol, hence the 2 clones per pot, but they are from the SAME mother.
Notice (sorry bad fuzzy pic) that there is SIGNIFICANT pistil development at every node. But they are fine. :jointsmile: