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.
Desdemona resolves not to be such a woman. Summary of Act 5, Scene 1: At Iago's instigation, Roderigo attacks Cassio, who wounds him. Iago wounds Cassio from behind and runs away. Othello, thinking that Cassio is dead, goes to kill Desdemona.