Young Leopard Gecko Shaking

[NovaPatch]

A couple weeks ago I bought a little gecko from one of my nearby petstores and I didn't have any big problems
I didn't mess with it much the first week minus putting my hand in the tank every couple days for it to get used to me and as of a few days ago it'll now climb up my hand and allow me to hold it, I tried to feed it a couple mealworms a couple days after I got it to see if it'd eat or if i'd have to wait till it got more used to it's new home but it actually ate one though that's it and I haven't been able to get it to eat since then and while I was gone last Thursday my grandma said it started shaking so I came home on Sunday and noticed the tank was pretty cold and that my grandma had turned off the heat lamp..?:main_no:
So I assumed that may of been the problem so I turned it back on and then I noticed she left crickets in the tank and she said the crickets have been in there for 2 days... so I removed them from the tank but this morning I noticed it was shaking again and i'm wondering if somethings wrong with it D:

 

[sausage]

sorry to hear your having problems, can you fill in the questionnaire below in as much detail as you can.

http://geckoforums.net/f130-health-medications/70912.htm

I can say from the information you have already provided that you need to use a UTH not a lamp, as leos absorb heat through their bellies not from above. lack of proper temps and heat source can suppress the appetite.

A lack of proper calcium in the diet has been know to cause tremors.

 

[Olympus]

Are you using any calcium supplements? A calcium deficiency will cause muscle shaking because calcium is involved in nerve impulses to the muscles, so when there isn't enough calcium the nerve impulses get wonky. Definitely fill in the little questionnaire and if you can attach a photo of him that would help too.