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.
In Act I, he is Othello's loyal and trusted lieutenant. In Act II, he is Othello's loyal friend in Cypress and respectful admirer of Desdemona but in Act II, Scene III, is manipulated to fight Roderigo, hitting him and Montano, and consequently losing his position as Othello's lieutenant.