upside down frown

A lot on my mind,
my mind you see ,
You see my mind is full,
I'd like to tip it upside down ,
And shake it,
Making it half full,
upside down,
a smile be comes a frown,
when upside down,
You see,
its upside down,
That i don't like,
That frown i don't like you see,
For a smile be comes a frown,
When upside down,
And my smile is definitely for me,
So upside down i will not be,
I will not be you see,
Leaving it full without a frown,
Never going upside down,
Not upside down you see,
For my smile I'll keep,
I'll keep you see,
My smile is part of me.