Answer:
I am something that floats. But after a period of time I fall.
What never ends but you always have it
Feared on the playground, he steals your lunch money and distributes wedgies
You can find me inside your body but not below the waist or in your tummy. I am located in the upper part and I am a symbol of love.
A toy that requires some string and a breezy day
What never gets any wetter no matter how hard it rains?