The leaves are curled down, small and slow growing

Did the girl actually recover and do you know what was the issue because I have one plant exactly looking the same at the moment ?

The feed amount is too strong, and it has caused the substrate ph to drop low. Plus if your diary is correct you have it too hot inside area. Lower 80's is more favorable.

The best thing to do now is flash use just ph water 6-7 and next time u start feeding her use half of the recommended dose

Poisoned em and looks like your fans are pissing em off also at a glance. Give them just water for the next week and ALWAYS let the soil dry up before feeding.

Thats overwatering and wind damage and too rich soil. You should still nurse them out, just have a regime of wet/dry - aka good watering schedule and forget food for next two weeks. Watch ph, soil is working best with 6,3

Wie GreenHarvest_Official schon sagt: viel zu viel Stickstoff.

That's nitrogen toxicity