good thinking but i am not joking about what i am about to say:
-we are colliding with a galaxy right now. so if we live in a planet inside a planet, when its done colliding would we all die?
-it is impossible to eat your head. its the same thing like its impossible to open your eyes while your sneezing
And the last fact,
-you cant smell scents in dreams. weird but true
So good hypothisis but its probably wrong