When you have taught your eyes to see with more than simple sight you will learn to read a plant, watch the leaves, when she is healthy and thirsty, the leaves will start to droop, this is not a problem, weed is a weed and is from an arid climate, the plant through thousands of years gets watered sporadically then is left with no water for as long as nature decides, the genes are programmed for this, they can shrivel and dry crispy leaves and when the rain comes it bounces back, so take this on board when watering, look at her with love and passion when fully moistured and you will see how she is at her peak, when she droops leaves she is saying its time for a drink, it does not hurt her to go a few days thirsty, when she drinks she will rebound and put a big spurt of growth on because she knows the next drink may be a while away, weed is ready and willing to be abused by drought.