Luckily, my caffeine-deprivation headaches are just a standard tension headache/possible lead-in to mild migraine for me. But then I have ADD and caffeine has nearly zero effect on my energy levels, etc. It helps me focus my attention a bit better I think.
Shakespeare's most striking departure from Cinthio is the manner of his heroine's death. In Shakespeare, Othello suffocates Desdemona, but in Cinthio, the Moor commissions the Ensign to bludgeon his wife to death with a sand-filled stocking.
By emphasising Roderigo's failed bid for Desdemona, and his own dissatisfaction with serving under Othello, Iago convinces Roderigo to wake Brabantio, Desdemona's father, and tell him about his daughter's elopement. Iago sneaks away to find Othello and warns him that Brabantio is coming for him.