2 abnormal eegs but different readings

My 8 yr old daughter just had her 2nd EEG. She has a history of learning disabilities,  staring episodes and sleepwalking  The first EEG was done on a digital 19 channel EEG and showed complex partial seizure tendancy.  The abnormalities were very frequent and her former neurologist thought it may be a good idea to try her on trileptal.  The second neuro we saw decided to repeat the EEG to see if the result was the same, then decide if meds were necessary..........

Her 2nd EEG was done at a different facility ona 10 channel EEG ( not digital ) and came back "mildly abnormal because of mild slowing and disorginazation of background rythyms" This EEG report was much shorter and less detailed than the first however, the neurologist feels she does not need medication since the eeg did not show the same thing.  Does a digital EEG show more activity?  Is it possible she does have complex partial seizures but it did not show up this time?  What does the second EEG mean?  The Dr said not to worry about it because she had an MRI and it was normal.  I am worried.  She complains about "daydreams" at school daily, is constantly exhausted
( blood work was all normal ) and is complaining of weakness in her right hand..

I am so confused by these results and not sure if I should try the medication or not.....................