is she scratching around or just walking on the bottom also is she eating properly..
chameleons get stressed easy she just may want to come out...
i leave the doors open on my viv allday my chameleon comes and goes has she pleases..
you may find she will lay if you put her back in her viv
i have a pied chameleon that was ready to lay put her in the lay bin nothing
then i just put the sand in her viv and she layed 20+ eggs...