In fact, my headache is on day 5 with only slight relief each day (or maybe I'm just getting used to it?). It comes and goes in waves, and is affected by standing/sitting up/walking/etc. It feels very sinus-like, almost as if the headache is located smack dab in the middle of my skull, behind my forehead. I've been lucky that Excedrin, water, sometimes coffee, and rest have always done the trick within 2-3 days - BUT, this time nothing feels like it's helping and I'm going a bit crazy... Any suggestions to curb the headache?