You should definatly get her to a vet asap. as for the light... you might want to think about possibly another heat pad at least because keeping the light on 24/7 will stress out your snake. Unless its a nighttime light... For the mites, make sure you clean and disinfect your cage, also go ahead and get some Provent-a-mite cuz this is the only way to be sure to get rid of the mites, eggs, etc... I know it might be expensive, but using flexwatt and a thermostat is the best bet to make sure thoes temps stay where they should. you could however, ditch the light, get another heat pad, and two rhetostats (sp) and hook them up to your two heat pads to create the warm and cool spots.... just a suggestion. But above all else, take a few breaths, calm down, you seem to be worried and plan on doing somethign about it! gatta give you credit for that! :-)