Em again beardie acting Strange

Question
Hi pam its Em again, you know My bearded dragon was cute....etc. well I don't think its puberty or anything because This is the fourth year i've had her and she is four years old and the only beardie I have so same question as before. She seems realy different. One more things how long do bearded dragons live? P.S. I appreciate the list!

Answer
 Well, four years old puts a different picture on it.  Suddenly acting strange at four years old definitely needs to be checked by a vet.  Especially I would advise an x-ray just in case she has decided to form eggs, they don't need a male to lay eggs, just like chickens.  If they are formed then she wants a place to lay them.  Four is a little old to start so that's why I feel a vet would be best first to rule out anything else.  If she has eggs, then I could give you links or describe a proper laybox.