If I can't find out what's wrong with her in the next few days I will definitely be passing her on to someone who can afford the vet, it's just the last time we visited the vet with my leo they charged us £40 just to look at him!
Here are some pictures of her from yesterday:


General Information
Species of lizard: Leopard Gecko
Gecko's name: Cas
Morph: Normal
Gender: Female
Age: Unknown
Weight: 1.4oz
Total length: 6 inch
Length of your reptile when you first acquired it: 6 inch
Source (pet store, breeder, previous owner): Previous owner
Captive bred or wild caught: Captive Bred
Vivarium
Enclosure dimensions (length x width x heighth): Is being temporarily housed in a plastic viv, 15x10 inches
Cage (type, size):
Substrate provided: Paper towels
Types of hiding places provided: 1 warm humid hide 1 cool hide
Is there a humidity hide? location? On the warm side of the viv
Please describe any other furnishings: Rock decoration
List recent changes in the environment, if any:
Heating
Do you have a thermometer(s) in the cage? Yes
What type and brand of thermometer (digital with probe, temperature gun, LCD strip, analog (circle), combo digital thermometer/hygrometer, stainless steel aquarim type, other): Analog
What is the ground temperature right on the substrate under the warm dry hide: 80 Fahrenheit
What is the air temperature on the warm end about 4 inches up from the ground:
What is the air temperature on the cool end about 4 inches up from the ground:
What device(s) are used to maintain the temperature (Under Tank Heater, heat light, ceramic heat emitter, Flexwatt heat tape, hot rock, other): Under tank heat mat
Ventilation space for your UTH by elevating the tank above the shelf (some UTHs come with sticky feet for the tank corners): sticky feet for the corners, half a cm
Are you using a thermostat(s)? no
Which hide does she/he spend most of her time? warm humid hide
Is the temperature decreased at night? by how much? no
Diet
Insects and worms, list type: I've been told she was kept on a diet of mealworms, crickets and locusts but she hasn't eaten anything since I've owned her. Mealworms have been offered in a bowl
Regular diet fed to the insects and worms: carrot
Are the insects and worms formally “gutloaded” 1-2 days prior to feeding off to your gecko? If so with? I feed the mealworms and crickets carrot
How often do you feed your gecko? Every 2-3 days I give crickets and/or locusts with a bowl of mealworms left in for them to eat (this is with my other leo's, the sick girl has been uninterested in all food i have given her)
Please list any supplements (with brand names) used. How are they given and how often? Calcium powder, a shallow dish is left in the viv at all times and insects are dusted once or twice a week
What calcium brand are you using? with D3, without or both? with
Is the calcium in the tank with D3 or without? with
Multivitamins (include brand name)?
Please list any recent additions/changes in the diet:
General Health
If your gecko is sick, please describe the signs and how long your gecko has been showing these signs:
Is your gecko’s general activity level normal, decreased, or increased? decreased
Is your gecko’s appetite normal, decreased, or increased? no appetite whatsoever
Have you noticed any of the following?
Weight (loss or gain): she is quite skinny
Discharge from the eyes or nose: none
Increased breathing rate or effort: no
Change in the droppings: the feces she has passed have been watery and very small
Urates
---white or yellowish: yellowish and very watery
---size of urates as compared to size of feces: smaller
Abnormal skin color or shedding: I have had to remove shed from her face, feet, legs and tail. I've been told that her last few sheds haven't been very successful
Parasites on the skin or in the feces: none that i have seen
Weakness: she seems quite weak and tired
Previous problems and/or illnesses: unknown
Other Critters in Same Cage or in Household: was kept with a female of the same age until a few days ago when the other female died, which is why i now have this leo
List other animals that are kept in the same cage: none
Recent acquisitions (new pets within the past 6 months): I only got this leo a few days ago
Are any of your other pets ill? no
I hope this helps! Thankyou all for your help x