i have a indica plant about 2 an ahalf feet tall it has been on 18-6 for 2 months and i changed it to 12-12 and after i checked on them the 2nd morning the fan leaves were wilting down, almost tuching the stock, and the fan leaves at the top were twisted and cureld up and a coulple of them were brown in the center, i watered them and poot them on 24 light for now, is it stress from the light change or could it have got to cold? will it recover, if so will the leaves recover, or will they look like shit?