What are you feeding her? She doesn't seem too stoked about her uptake/transpiration..
Leaves on the bottom seem crispy, like magnesium deficiency. Possibly due to pH imbalance, or likely due to a lack of magnesium in your water..
I'm going to say pH imbalance because it looks like your getting burn/curl on the tips.. Even though it doesn't look like excessive nitrogen (usually see burns and tip curl from too much N)... So that leads me to believe something is wrong with your pH.
ps: just read the description and saw you said too much N. That makes sense, but if your plant was truly maxing out on the N uptake the leaves would be much darker. I think your misreading pH imbalance as N burn.