Himy humble contributions… I study psychology and even then, i would not be confident to say that you gal has issues. In stead of seeking advice from non-professionals like us, it would be better to seek professional expertise in getting teh correct evaluation of your child. Early detection can do wonders. You might want to see a professional child psychologist. Guessing abotu condition will not help. Secondly, split personality is a sort of mental discorder. If you suspect this, you might want to seek IMH for an assessment.Lastly, ADHD is a mendical condition whicvh may require medication. I think most singaporean use the term "hyperactive" too loosely to describe any child who may be more active than the average or has short attention span and is active. Hope this helps.