I get 'em regularly. Seem to be stress/neurologically related. I'm probably as much addicted to Panadol as House is to Vicodin. :s
I've actually contemplated trying Vicodin, but need to consult my GP first. It might be better for me for the long-shot, 'cause I already require, like, 2g+ of paracetamol (4 pills of Panadol Forte) everytime that
headache hits me. So, less of stronger agents might actually work better?