Breton1900, what I meant by that is that at the age of 4 years 8 months, she fulfils
Diagnostic Criteria for ADHD
The official list of symptoms which healthcare professionals use to diagnose ADHD (diagnostic criteria DSM-IV1 or ICD-10)state that: -
The child must display either inattention or hyperactivity-impulsivity (or both) and symptoms must have been present for at least 6 months.
* Inattention. Usually at least 6 symptoms are seen.
o Fails to pay close attention to details or makes careless errors in schoolwork, work or other activities
o Has trouble keeping attention on tasks or play <strong>Attention span of 30 seconds without intervention</strong>
o Doesn't appear to listen when being told something <strong>Completely oblivious to someone telling her something unless they say her name several times or touch her to get her attention</strong>
o Neither follows through on instructions nor completes chores, schoolwork, or jobs (not due to failure to understand or a deliberate attempt to disobey) <strong>Completely unable to follow an instruction unless given constant reminders, because she sees something else on the way</strong>
o Has trouble organising activities and tasks
o Dislikes or avoids tasks that involve sustained mental effort (homework, schoolwork) <strong>SALT found it impossible to get her to sit and look at a book</strong>
o Loses materials needed for activities (assignments, books, pencils, tools, toys)
o Easily distracted by irrelevant information <strong>Gets completely side-tracked by someone's hairband, for example</strong>
o Forgetful <strong>Extremely, although has a very good long-term memory</strong>
* Hyperactivity-Impulsivity. Usually at least 6 symptoms are seen.
o Hyperactivity Squirms in seat or fidgets
o Inappropriately leaves seat <strong>Very difficult to get her to sit at all. Have to use a tray to keep her in her chair at meal times</strong>
o Inappropriately runs or climbs (in adolescents or adults, there may be only a subjective feeling of restlessness) <strong>A danger to herself and needs constant supervision</strong>
o Has trouble quietly playing or engaging in leisure activity <strong>Unable to play alone</strong>
o Appears driven or "on the go" <strong>Has melatonin to sleep. Can't sleep without medication. Rarely rests.</strong>
o Talks excessively <strong>Constant, doesn't finish one sentence before starting another, constant questioning, repetitive</strong>
Impulsivity
o Answers questions before they have been completely asked <strong>All the time</strong>
o Has trouble waiting his/her turn <strong>Simply can't wait her turn. Just can't, without support of someone holding her back</strong>
o Interrupts others <strong>unceasingly</strong>
<strong> Symptoms begin before age 7 </strong>She is 4.8*
<strong> Symptoms must be present in at least 2 places, such as school, work or home </strong>Needed 1:1 support at preschool at all times*
<strong> The disorder negatively affects school, social or occupational functioning </strong>See last point*
<strong> The symptoms do not occur solely due to a psychotic disorder (such as schizophrenia) </strong>No*
<strong> The symptoms are not better explained by an alternative disorder (such as a mood, anxiety or personality disorder) </strong>Here she may fall down, because she has a brain malformation, which might explain it, but they just don't know.*
Just to further qualify, Breton1900, because you seem to want details. She is starting school in September and will go to a Special School. She needed full 1:1 support at preschool, both for function and safety. She has a Statement of Special Educational Need, which are only given to around 2% of children nationally, and not too commonly issued before the age of 5 (although on MN the proportion is skewed because we on the SN board give Damn Good Advice 
)