Hi,  what has been your​ childhood like.  I mean were there any problems like inattention,  hyperactive child,  or inattention has been there since childhood or it is of recent onset.  Early onset can be a part of ADHD,  and if it is of recent onset,  are there any other symptoms like low mood,  lethargy,  lack of interest in work,  in that case we will have to rule out depression.  In both case medications has to be started