Hey Carolyn...I think that somebody may be right. What's difficult about this particular situation is that in many plants the ill effects of watering too much and too little can manifest itself in the same way: leaf drop, drooping, etc...If you water it quite a lot, you can be causing there to be very little oxygen in the soil. This causes the roots to die off, which is what causes the leaf drop or wilting and so on. When the roots abruptly die off for whatever reason, the symptoms will resemble not getting enough water because the roots can no longer supply enough water to the aboveground parts of the plant.