One thing people don't know about the crickets is that you must never feed crickets bigger than the space between the eyes of the beardie! Otherwise they could develop problems (I forget what it's called, sorry). Does your beardie have it's legs stretched out all the time or just when laying there? Does it move around at all or just stay in the same place all the time? I ask because extended hind legs is a symptom of that digestive problem.

But otherwise, 10 crickets is not enough especially for a young BD. They need a lot more per day, but they have to be the right size. Also don't forget the greens!

I'm sure a more knowledgeable BD keeper will chime in here as well.