The droop is one thing, lime is another.
Ohhh lime green all over with no obvious start point, first thing to do I check ph, normally I'd associate that with high pH skewing from too high a proportion of cations in the soil. Once ph is skewed a cascade of symptoms come with it.
High pH can reduce the activity of K+ channels in guard cells, hindering the influx and efflux of potassium ions that are crucial for stomatal movement. (Droop) no gas exchange, no pressure, no pressure, no uptake.
High pH in the soil can cause magnesium to become less soluble and less available for plant roots to absorb. This is because magnesium can bind more tightly to soil particles or precipitate out of the soil solution at higher pH levels. Magnesium is a special nutrient, in that its mostly mobile. But being the central atom in chloryphyll it is also immobile, when uptake is cut, chloryphyll is unable to replenish itself after photosynthesis. Magnesium presents within the plant as mobile but not for the chloryphyll atom.
Tips look ever so slightly yellow I'd say your soil ec is 1.6-1.7 if I had to guess. You will need to check her ph. Most likely acidify her back to 6.2 -6.8 if it happens to be high.
Gluck.