Ok, first let me say, recognizing that there are husbandry problems is the first step tp correcting them, and frankly is a place many Uro owners never get, so Good Job!
question question question. I will also say, I had a similar situation with my first Uro, and the first 2 years I had him he lived in much too cool of temps, and ate dethawed frozen veggies, and lived on crushed walnut substrate, because that is what the pet store had told me. Thank goodness I eventually found this forum!!
Now that was a decade ago, and I am still constantly improving my husbandry! (different Uro though
)
Ok, now onto things that I think will make dear Kong a MUCH happier camper.
***1) You need to take Kong, and a fresh fecal sample to a knowledgeable herp vet, preferably with Uro experience. This is to check out the blood on her chin (not normal!), check her for parasites, and check on her body weight etc. Due to her diet she may have issues only a vet can identify, and better to know sooner than later! 
2) She is most likely suffering fairly major malnutrition at this point, as well as possibly a Vit D defficiency. Luckily, you can fix this!
Read lots of care sheets, but you can start with Doug Dix's ( http://www.deerfernfarms.com/Uromastyx_Care.htm ) it is the same one that Knoldg recommended. You do want to stop feeding her Kale right away. It will actually keep important minerals from her body. Bok (Pok) Choy, dandelion greens, turnip greens, mustard greens and some collard greens are all ok. Variety is important!
(some people do not think that mustard and collard greens are very good for them, once you get her eating good greens you should look into this and make your own decision
) You should also add a vitamin and mineral supplement, as well as a calcium supplement (they are separate). I use Herpevite, and the corresponding calcium supplement.
3) a 40 gallon breeder tank is, in my opinion, the minimally acceptable size to keep a smaller adult Uro in. (ie Mali, Saharan, etc, - basically NOT Egyptians) You can make it good for her, and just keep in the back of your brain that if the opportunity arises, she would appreciate more space.
However, since it is not a huge space, you want to be careful not to clutter it up with too many places to hide (when people ask about "hides" they are referring to little caves she can go to feel safe and protected). She should have one on the cool side, and one on the hot side, and maybe one more, but be careful of so many she doesn't have room to run around.
What type of substrate are you using? (substrate is what you have on the bottom of the tank. ie newspaper, sand, calci-sand, dirt, etc)
4) I think your tank temps are a little low, try raising them and she will probably be more active. Make sure she has a basking spot that gets up to 120-140. Also, if you don't already, I strongly recommend you get her a UVB bulb. This will help her metabolize all the new, yummy food you will be feeding her. A nice benefit for you is that the UVB lights often bring out the Uro's colors and markings as well. 
I know this post is long, and it seems like a lot of things to address, but Kong will thank you for it!!
I cannot stress enough finding a good vet and setting up an appointment though. I do this yearly with my Uro, they need check ups just like cats, dogs, and People!
In this case you really want to make sure she doesn't have a calcium deficiency or parasites.
If any of this doesn't make sense, or you think of new questions please ask! There are a lot of people on here that are VERY knowledgeable. Uro husbandry is not always an exact science, so there are often discussions regarding best practices, as you get to know more about Kong, and uros in general, you will be able to make up your mind on these topics as well! 
Have a lovely day, and give Kong a nice treat from us.
(a very small, skinned, SLIVER of granny smith apple is a favorite treat of my uro
)
Elizabeth 

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1.0 Mali Uro Archimedes (May he rest in peace)
0.0.1 Egyptian Uro Zuberi Mosca Khu (Mosca)
0.1 Sulcata Minnie
1.1 Iguanas Flik and Loki
Madison, Wisconsin