Never really knew about these - I get really bad headaches which can last 3 days. I am just coming out of a flare up - this one was quite bad in that the pain in my head made me sick and felt sick all day. Paracetamol just doesn't work, especially if I don't take when headache first appears - what do other sufferers take as pain relief?. Before i was diagnosec with APS, i took ibuprofen but that's not an option. PS new to this.