try drinking lots of water and Gatorade. if you can find some lactation cookies or make some those help also :)and if you can start pumping every 2 hrs instead.
how do you think its getting lower? as baby gets bigger your body will only make what baby needs you won't leak as much and so on, your milk is made just for baby. if baby is having 6 wet/dirty diapers a day that's good:)