Well its not like breaking a leg. Psychology is very fluid, its based on opinions and theories, not x-rays and blood tests. At five years old you are bound to have some quirky traits, because you're learning and observing and growing. I was an odd child at that age, but thankfully I grew up in the 90s and wasn't diagnosed with anything. If I grew up in this age, I would probably be diagnosed at 5 years old with ADHD because I had energy, OCD because I liked to line up my Barbie dolls, Dependent disorder because I loved my parents, and Separation anxiety because I cried when I had to go to school. All normal behaviors, but apparently not to doctors or overly concerned parents.