Answer:
from the beginning of the eassy itself.
Step-by-step explanation:
Readers can comprehend that young Sedaris had Obsessive Compulsive Disorder from the beginning of the eassy itself. As a child, young Sedaris would often touch the surface of his desk with his nose repeatedly, leave his chair and come back to sit again, lick the switches, etc.
Young Sedaris would also count his steps while returning home and would return back to school if he loses count of his steps. Sedaris say that he felt like every object around him needed his attention and it was his duty to touch or feel them.