Hello Grizzy and Welcome to BD.org!
First I need to tell you that beardies go thru a thing we humans call relocation stress it doesn't matter if they are hatchlings or adults. Relocation stress can last days to weeks. During this time beardies seem to have less of an appetite and can be less active. However if her head is down all the time is not good. I'm sorry that someone sold you a baby that is only 2 weeks old...that's not right! Babies should be allowed to grow and put on a little gurth before they are rehomed. Hatchlings to 2 weeks are much/way to young to have to deal with relocation stress...would handle it better if they were at least 6 weeks but preferrably 8 to 10 in my opinion.
You could try mixing a little bit of supplements in with some baby food and see if you could get your little one to take a few licks...try this several times a day and hopefullly it will trigger his/her appetite.
Okay you need to get the crickets that she is not eating out of the viv or they will eat at your beardie as you suspected. Young beardies are often afraid of the fast moving crickets so if you put them in the frig for a minute this will slow them down...normally I suggest that you feed crickets in a seperate container...but this may stress a baby so small....but I'd only try offering a couple at a time.
Let me ask a few questions and we can go from there.
What size enclosure do you have your dragon in?
What type substrate do you have on the bottom of your tank?
Do you use UVB lights?
If so, Is it a coil, compact, fluorescent tube, or Mercury Vapor bulb?
What is the brand name and number of your bulb? Wattage (if MVB)?
How old is your
UVB bulb?
How close can your dragon get to the UVB?
Do you use a separate basking bulb? What kind and what is the wattage?
What are the basking temps?
What is the cool side temp?
Do you take the temps with a stick on thermometer, a digital thermometer with a wire and a probe end or a temp gun?
Where exactly are you taking your basking temps?
Do you use a heat rock or heat pad?
Do you use vitamin or calcium supplements? What brand(s)? How many days a week do you use each of them?
(
I know you said your beardie is not eating but just want to make sure you have it right for when she does)
Is your dragon having regular bowel movements (poops)?
Do you
bath your dragon? How often?
Do you mist your dragon or offer water other than in the
bath?