I have been taking Lyrica over a year for nerve pain related to a primary headache (Hemicrania Continua) and it has worked for me. I haven't had a headache for three months now, but if I did, I'm to take Indocin. I'm up to 200mg twice a day, and will go no higher. My headaches were severe, one-sided, and lasted ten to fourteen days, sometimes longer, with only a few days inbetween. I think the Lyrica has helped my other pains too... severe back issues and trauma arthritis in an ankle, broken two years ago. No side effects I can't live with.