it sounds like it only helped the headache so much, because it was caused in the first place by the withdrawal of the caffeine.. so it's not a headache cure, but replacing the drug that was being withdrawn from.
would that not have been caffeine withdrawal though ? If you'continued with the de-caf, those symptoms should've gone in time, like any drug you're gonna notice when you stop taking it.
(nascondi) Giocare una partita in tempo reale con un avversario in linea è possibile! Tu ed il tuo avversario dovete impostare come predefinita l'azione “rimani su questa pagina” posta dopo il bottone MUOVI e ricaricare la pagina con il tasto F5! (TeamBundy) (mostra tutti i suggerimenti)