i would agree, repot and see if she takes off. i get bound clones, the first thing they do is drop the bottom leaves, sometimes the whole branches. that looks like a pretty decent size pot though, i use dixie cups...root bound, have you checked..idk
*da na na naaa*
how do you prefer to remedy this?
are you one to put a little h2o2 in the watering to areate these roots?
or do you just let dry out a bit?
just curious...