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.
Bianca, recognizing a woman's handkerchief, jealously suspects that Cassio has a new love. Desdemona's straightforward trust contrasts with Othello's sulky suspicion. Emilia's view of jealousy as a natural characteristic of irrational men contrasts with Othello's real personal sufferings of the previous scene.