from last year may till now my baby girl is tightening her whole body keeping her legs and hands straight we have gone to doc and done some checks even done EEG it is ok ,she is stoping it while we are diverting some says it's due to muscle development i didn't get any better suggestion till now please recommend how to get rid of this issue

A. If all the test results are normal then it’s very difficult to say if it is any muscular issue or anything but I think it could be associated with deficiencies in the body if it is okay with you I would advise you to check with the doctor and get a complete blood count and also deficiency has done to know that what is the reason if it is associated with deficiencies and you can start with right supplements for the child