green leaves falling off flowering plant

three of my fan leaves have fallen off my plant. Mostly at the bottom and half way up the plant the plant is due for watering most of the leave are drooping and curled under like a c shape. The leaves that have fallen off are still moist is it because the plant needs water the leaves are falling of or is it because the light is not getting to these leaves? peace

Pictures help alot

did not think they would have been needed here is a image of the leaves this image you can see spider mite damage