definitions of normal...

"normal"... definition by english dictionary-----> 1: occuring naturally.

now what does this mean exactly? can this definition be applied to emotions? what defines "naturally"? would this imply reactive emotional states such as appropriate stress response.... or spontaneous emotional states as seen in "bipolar disorder"?

"Spontaneous" is a synonym of "natural" in the english thesaurus, therefore spontaneous bipolar states of emotion can only be defined as normal, according to this definition.