Are you ph'ing your water? Between the yellow edged leaves in this week and these limp curled various off leaves, i think the best thing is to flush, ph the water and then come in with a half dose of nutrients.
I used to not ph...and i had a few plants do good and a lot of plants who went horribly wrong in many different ways.
Magnesium, copper, and potassium deficiency can cause those yellow edges but usually due to ph. Are you giving the plant any nutrients?
Either way...typically if your plant goes to hell over night it's often root problems, either ph, over/under watering...something that .