I would be giving her a good watering as a first step, and by good I mean the entire pot, from side to side and until there is water coming out of the bottom of the pot. If you have been not doing this, it may take one or two repetitions of this over a couple of days to fully rehydrate your soil mix until it is evenly moist from top to bottom and from side to side too.
The top leaves, being closest to the light and therefore the warmest too, will show dehydration by drooping first.
Drooping like this is not caused by any type of nutrient deficiency or excess, it can only a hydration problem.
Hope this helps, Organoman.