They should be ok until tomorrow, unless all the leaves are falling off.

Couple questions,
How often are you waterimg? Some say it's best to let the soil to dry out before watering. Might just be over watering, common when using pots and soil.
Have you tried to back off the nutrients for a couple waterings?
Try using distilled water and see how it goes.

If you do repot them make sure you mix perlite into the soil this should allow proper drainage and use care when transplanting. Just a couple ideas to think about. Let me know how it goes. good luck.
I had the same problem with mine when i used soil, so i just switched to a simple hydro set up.