and another www.orthonurse.org/portals/O/Perthes/.pdf
yes I do believe it can last several months in fact 6-12 months here is a link I would think may be helpful to you www.urmc.rochester.edu.>Encyclopedia
They were going to wait 3 months before a definitive diagnosis of the Legg-Calve-Perthes disease. But if this is a virus, can it last this long, really? With the fever and everything? I just don't remember these kinds of illness issues when my kids were little.
Has a diagnosis been determined Yet ? It could be that having had a lot of attention that indeed she is seeking it, not exactly a behavioral issue than liking the attention she was getting .There have been many virus's going around this year with similar symptoms I think you will have to wait till the scan is done and you have more information.Try playing it down a bit lessen the carrying, see if there is any difference