From the look of the spine, your cham definitely appears to have or have had MBD or some sort of bone problem caused by lack of UVB. I have seen it before in another chameleon that the owner did not replace the UVB after 6 months and did not sup with D3. Now that you have your light it should not get worse. My best advise would be to listen to Kinyonga bc there are not too many people that have had their chams live over 6 years sharing advise. She is definitely steering you in the right direction. If you are wondering if she is gravid, palpate her stomach and if she is gravid you can feel jelly bean sized eggs.
-chris