well, a few months back my male leopard gecko from petco died. im assuming it died from some sort of illness because it refused to eat and wasnt very active. i had two, one male, one female and the female was very healthy. when the male looked like it was sick i seperated the two geckos and cleaned the cage with salt when he died. then i put the female back in the tank and used a heat mat instead of a heat lamp. i was told they need that kind of heat more. now my female has changed drastically. its tail became very thin, (it really doesnt have much of a tail though, it fell off before i bought it), its turned a pale color (like its shedding but its been like that for about a week), and shes real sluggish. i tried to move her out of her shed box today to make sure she was ok and she barely moved. i think that its dehydrated, but im not sure. right now its main supplies are the heat mat, a ten gallon tank, a delicup with a hole in it(shed box), and a zoomed water container. (the ones that hold a large amount of water and puts out alittle at a time.), and its hide. the substrate is a reptile carpet. is my leopard gecko sick? or is it normal when there shedding? and if it sounds like its dehidrated, how can i get her hydrated again? i really dont want to see this leopard gecko die.