Thanks for writing in to us.
Your daughter's brain must surely have re wired itself to do most of the cognitive and motor tasks. Even though you say there was damage to half of the brain, the functions can be taken over by the remaining half.
It is important for her to be evaluated by a neuropsychiatrist and do further advanced imaging studies if felt necessary. Her depression
like problems need to be evaluated clinically. There are many forms of illnesses which appear the same to begin with. Whatever, it looks like a small problem which must be seen by a doctor and treated on time.
Hope this helps