Caffeine Headache

Coming down, these stairs are a cliff story
Uneven drift says, "Lilt, windmills protect tulips."
As my name is Stumble, I also answered to the above.
The south seas bubble at their own effervescence
And quibble about burbles as their yokes harden.
Surely surly surnames can denote that barrel makers 
Might notch a mean belt.