Hi welcome to health care magic
as you are telling your kid is premature delivered baby. So it is clear that her brain development is not as in normal kid. So all the things from physical aspect to mental aspect all are controlled by the brain. During the intra uterine growth period the fetus all part developed in a proper way because the fetus can get all the requirements from the mother. if there will be any imature delivery as much as precaution or treatment can be adopted the natural thing can not be achieved. so all her behavioral changes is only due to delayed maturing of brain cells.
You need to continue your treatment with the consultation of your pediatrician
and can adopt behavioral mangment . I would add one thing if are giving homeopathy
treatment with all the treatment what you are giving you will get better result. if you would like can visit www.multicarehomeopathy.com